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Finding the Fourth Proportional to 487,155.60, 730,733.81 and 132,169.66

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Solution

The fourth proportional to 487,155.60, 730,733.81 and 132,169.66 is: 198,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,155.60 : 730,733.81 = 132,169.66 : x
  2. Step 2: Convert to fraction form
    487,155.60/730,733.81 = 132,169.66/x
  3. Step 3: Cross multiply
    487,155.60x = 730,733.81 × 132,169.66
  4. Step 4: Simplify right side
    487,155.60x = 96,580,836,730.52
  5. Step 5: Solve for x
    x = 96,580,836,730.52/487,155.60
  6. Step 6: Final answer
    x = 198,254.60

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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.