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Finding the Fourth Proportional to 132,688.68, 183,112.68 and 75,326.52

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Solution

The fourth proportional to 132,688.68, 183,112.68 and 75,326.52 is: 103,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,688.68 : 183,112.68 = 75,326.52 : x
  2. Step 2: Convert to fraction form
    132,688.68/183,112.68 = 75,326.52/x
  3. Step 3: Cross multiply
    132,688.68x = 183,112.68 × 75,326.52
  4. Step 4: Simplify right side
    132,688.68x = 13,793,240,952.27
  5. Step 5: Solve for x
    x = 13,793,240,952.27/132,688.68
  6. Step 6: Final answer
    x = 103,951.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.