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Finding the Fourth Proportional to 531,701.71, 797,548.45 and 132,339.79

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Solution

The fourth proportional to 531,701.71, 797,548.45 and 132,339.79 is: 198,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,701.71 : 797,548.45 = 132,339.79 : x
  2. Step 2: Convert to fraction form
    531,701.71/797,548.45 = 132,339.79/x
  3. Step 3: Cross multiply
    531,701.71x = 797,548.45 × 132,339.79
  4. Step 4: Simplify right side
    531,701.71x = 105,547,394,387.83
  5. Step 5: Solve for x
    x = 105,547,394,387.83/531,701.71
  6. Step 6: Final answer
    x = 198,508.66

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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.