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Finding the Fourth Proportional to 69,887,592.30, 104,830,404.30 and 31,549,044.90

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Solution

The fourth proportional to 69,887,592.30, 104,830,404.30 and 31,549,044.90 is: 47,323,123.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,887,592.30 : 104,830,404.30 = 31,549,044.90 : x
  2. Step 2: Convert to fraction form
    69,887,592.30/104,830,404.30 = 31,549,044.90/x
  3. Step 3: Cross multiply
    69,887,592.30x = 104,830,404.30 × 31,549,044.90
  4. Step 4: Simplify right side
    69,887,592.30x = 3,307,299,132,145,853
  5. Step 5: Solve for x
    x = 3,307,299,132,145,853/69,887,592.30
  6. Step 6: Final answer
    x = 47,323,123.08

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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.