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Finding the Fourth Proportional to 150,254.60, 225,345.90 and 86,937.80

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Solution

The fourth proportional to 150,254.60, 225,345.90 and 86,937.80 is: 130,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,254.60 : 225,345.90 = 86,937.80 : x
  2. Step 2: Convert to fraction form
    150,254.60/225,345.90 = 86,937.80/x
  3. Step 3: Cross multiply
    150,254.60x = 225,345.90 × 86,937.80
  4. Step 4: Simplify right side
    150,254.60x = 19,591,076,785.02
  5. Step 5: Solve for x
    x = 19,591,076,785.02/150,254.60
  6. Step 6: Final answer
    x = 130,385.87

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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.