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Finding the Fourth Proportional to 178,052.70, 267,079.05 and 158,007.90

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Solution

The fourth proportional to 178,052.70, 267,079.05 and 158,007.90 is: 237,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,052.70 : 267,079.05 = 158,007.90 : x
  2. Step 2: Convert to fraction form
    178,052.70/267,079.05 = 158,007.90/x
  3. Step 3: Cross multiply
    178,052.70x = 267,079.05 × 158,007.90
  4. Step 4: Simplify right side
    178,052.70x = 42,200,599,824.50
  5. Step 5: Solve for x
    x = 42,200,599,824.50/178,052.70
  6. Step 6: Final answer
    x = 237,011.85

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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.