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Finding the Fourth Proportional to 132,336.59, 198,393.30 and 57,400.31

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Solution

The fourth proportional to 132,336.59, 198,393.30 and 57,400.31 is: 86,052.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,336.59 : 198,393.30 = 57,400.31 : x
  2. Step 2: Convert to fraction form
    132,336.59/198,393.30 = 57,400.31/x
  3. Step 3: Cross multiply
    132,336.59x = 198,393.30 × 57,400.31
  4. Step 4: Simplify right side
    132,336.59x = 11,387,837,417.91
  5. Step 5: Solve for x
    x = 11,387,837,417.91/132,336.59
  6. Step 6: Final answer
    x = 86,052.07

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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.