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Finding the Fourth Proportional to 47,208,057.40, 70,700,111.70 and 47,208,057.40

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Solution

The fourth proportional to 47,208,057.40, 70,700,111.70 and 47,208,057.40 is: 70,700,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,208,057.40 : 70,700,111.70 = 47,208,057.40 : x
  2. Step 2: Convert to fraction form
    47,208,057.40/70,700,111.70 = 47,208,057.40/x
  3. Step 3: Cross multiply
    47,208,057.40x = 70,700,111.70 × 47,208,057.40
  4. Step 4: Simplify right side
    47,208,057.40x = 3,337,614,931,320,011.50
  5. Step 5: Solve for x
    x = 3,337,614,931,320,011.50/47,208,057.40
  6. Step 6: Final answer
    x = 70,700,111.70

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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.