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Finding the Fourth Proportional to 92,686.43, 127,911.53 and 52,401.89

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Solution

The fourth proportional to 92,686.43, 127,911.53 and 52,401.89 is: 72,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,686.43 : 127,911.53 = 52,401.89 : x
  2. Step 2: Convert to fraction form
    92,686.43/127,911.53 = 52,401.89/x
  3. Step 3: Cross multiply
    92,686.43x = 127,911.53 × 52,401.89
  4. Step 4: Simplify right side
    92,686.43x = 6,702,805,023.22
  5. Step 5: Solve for x
    x = 6,702,805,023.22/92,686.43
  6. Step 6: Final answer
    x = 72,317.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.