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Finding the Fourth Proportional to 375,591.56, 563,387.18 and 91,280.60

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Solution

The fourth proportional to 375,591.56, 563,387.18 and 91,280.60 is: 136,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,591.56 : 563,387.18 = 91,280.60 : x
  2. Step 2: Convert to fraction form
    375,591.56/563,387.18 = 91,280.60/x
  3. Step 3: Cross multiply
    375,591.56x = 563,387.18 × 91,280.60
  4. Step 4: Simplify right side
    375,591.56x = 51,426,319,822.71
  5. Step 5: Solve for x
    x = 51,426,319,822.71/375,591.56
  6. Step 6: Final answer
    x = 136,920.86

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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.