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Finding the Fourth Proportional to 424,399,266.32, 636,598,749.65 and 113,498,801.91

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Solution

The fourth proportional to 424,399,266.32, 636,598,749.65 and 113,498,801.91 is: 170,248,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,399,266.32 : 636,598,749.65 = 113,498,801.91 : x
  2. Step 2: Convert to fraction form
    424,399,266.32/636,598,749.65 = 113,498,801.91/x
  3. Step 3: Cross multiply
    424,399,266.32x = 636,598,749.65 × 113,498,801.91
  4. Step 4: Simplify right side
    424,399,266.32x = 72,253,195,382,111,536
  5. Step 5: Solve for x
    x = 72,253,195,382,111,536/424,399,266.32
  6. Step 6: Final answer
    x = 170,248,162.80

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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.