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Finding the Fourth Proportional to 577,150.62, 865,725.92 and 156,426.49

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Solution

The fourth proportional to 577,150.62, 865,725.92 and 156,426.49 is: 234,639.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,150.62 : 865,725.92 = 156,426.49 : x
  2. Step 2: Convert to fraction form
    577,150.62/865,725.92 = 156,426.49/x
  3. Step 3: Cross multiply
    577,150.62x = 865,725.92 × 156,426.49
  4. Step 4: Simplify right side
    577,150.62x = 135,422,466,967.62
  5. Step 5: Solve for x
    x = 135,422,466,967.62/577,150.62
  6. Step 6: Final answer
    x = 234,639.73

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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.