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Finding the Fourth Proportional to 71,786,995.80, 107,680,493.70 and 26,342,885.40

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Solution

The fourth proportional to 71,786,995.80, 107,680,493.70 and 26,342,885.40 is: 39,514,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,786,995.80 : 107,680,493.70 = 26,342,885.40 : x
  2. Step 2: Convert to fraction form
    71,786,995.80/107,680,493.70 = 26,342,885.40/x
  3. Step 3: Cross multiply
    71,786,995.80x = 107,680,493.70 × 26,342,885.40
  4. Step 4: Simplify right side
    71,786,995.80x = 2,836,614,905,354,522
  5. Step 5: Solve for x
    x = 2,836,614,905,354,522/71,786,995.80
  6. Step 6: Final answer
    x = 39,514,328.10

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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.