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Finding the Fourth Proportional to 344,548.47, 516,781.71 and 91,847.91

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Solution

The fourth proportional to 344,548.47, 516,781.71 and 91,847.91 is: 137,760.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,548.47 : 516,781.71 = 91,847.91 : x
  2. Step 2: Convert to fraction form
    344,548.47/516,781.71 = 91,847.91/x
  3. Step 3: Cross multiply
    344,548.47x = 516,781.71 × 91,847.91
  4. Step 4: Simplify right side
    344,548.47x = 47,465,319,989.73
  5. Step 5: Solve for x
    x = 47,465,319,989.73/344,548.47
  6. Step 6: Final answer
    x = 137,760.94

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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.