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Finding the Fourth Proportional to 487,463.69, 731,193.48 and 132,476.69

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Solution

The fourth proportional to 487,463.69, 731,193.48 and 132,476.69 is: 198,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,463.69 : 731,193.48 = 132,476.69 : x
  2. Step 2: Convert to fraction form
    487,463.69/731,193.48 = 132,476.69/x
  3. Step 3: Cross multiply
    487,463.69x = 731,193.48 × 132,476.69
  4. Step 4: Simplify right side
    487,463.69x = 96,866,088,324.01
  5. Step 5: Solve for x
    x = 96,866,088,324.01/487,463.69
  6. Step 6: Final answer
    x = 198,714.47

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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.