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Finding the Fourth Proportional to 60,389,001.40, 90,477,213.90 and 51,885,945.40

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Solution

The fourth proportional to 60,389,001.40, 90,477,213.90 and 51,885,945.40 is: 77,737,595.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,389,001.40 : 90,477,213.90 = 51,885,945.40 : x
  2. Step 2: Convert to fraction form
    60,389,001.40/90,477,213.90 = 51,885,945.40/x
  3. Step 3: Cross multiply
    60,389,001.40x = 90,477,213.90 × 51,885,945.40
  4. Step 4: Simplify right side
    60,389,001.40x = 4,694,495,780,359,521
  5. Step 5: Solve for x
    x = 4,694,495,780,359,521/60,389,001.40
  6. Step 6: Final answer
    x = 77,737,595.78

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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.