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Finding the Fourth Proportional to 577,177.74, 865,766.61 and 156,453.62

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Solution

The fourth proportional to 577,177.74, 865,766.61 and 156,453.62 is: 234,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,177.74 : 865,766.61 = 156,453.62 : x
  2. Step 2: Convert to fraction form
    577,177.74/865,766.61 = 156,453.62/x
  3. Step 3: Cross multiply
    577,177.74x = 865,766.61 × 156,453.62
  4. Step 4: Simplify right side
    577,177.74x = 135,452,315,880.80
  5. Step 5: Solve for x
    x = 135,452,315,880.80/577,177.74
  6. Step 6: Final answer
    x = 234,680.42

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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.