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Finding the Fourth Proportional to 121,689.52, 182,551.56 and 37,456.70

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Solution

The fourth proportional to 121,689.52, 182,551.56 and 37,456.70 is: 56,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,689.52 : 182,551.56 = 37,456.70 : x
  2. Step 2: Convert to fraction form
    121,689.52/182,551.56 = 37,456.70/x
  3. Step 3: Cross multiply
    121,689.52x = 182,551.56 × 37,456.70
  4. Step 4: Simplify right side
    121,689.52x = 6,837,778,104.69
  5. Step 5: Solve for x
    x = 6,837,778,104.69/121,689.52
  6. Step 6: Final answer
    x = 56,190.36

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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.