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Finding the Fourth Proportional to 72,401,963,139.90, 108,602,944,709.85 and 72,401,963,139.90

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Solution

The fourth proportional to 72,401,963,139.90, 108,602,944,709.85 and 72,401,963,139.90 is: 108,602,944,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,401,963,139.90 : 108,602,944,709.85 = 72,401,963,139.90 : x
  2. Step 2: Convert to fraction form
    72,401,963,139.90/108,602,944,709.85 = 72,401,963,139.90/x
  3. Step 3: Cross multiply
    72,401,963,139.90x = 108,602,944,709.85 × 72,401,963,139.90
  4. Step 4: Simplify right side
    72,401,963,139.90x = 7,863,066,399,767,157,276,672
  5. Step 5: Solve for x
    x = 7,863,066,399,767,157,276,672/72,401,963,139.90
  6. Step 6: Final answer
    x = 108,602,944,709.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.