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Finding the Fourth Proportional to 178,395.42, 267,568.56 and 98,580.90

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Solution

The fourth proportional to 178,395.42, 267,568.56 and 98,580.90 is: 147,857.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,395.42 : 267,568.56 = 98,580.90 : x
  2. Step 2: Convert to fraction form
    178,395.42/267,568.56 = 98,580.90/x
  3. Step 3: Cross multiply
    178,395.42x = 267,568.56 × 98,580.90
  4. Step 4: Simplify right side
    178,395.42x = 26,377,149,456.50
  5. Step 5: Solve for x
    x = 26,377,149,456.50/178,395.42
  6. Step 6: Final answer
    x = 147,857.77

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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.