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Finding the Fourth Proportional to 178,391.32, 267,631.62 and 125,903.32

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Solution

The fourth proportional to 178,391.32, 267,631.62 and 125,903.32 is: 188,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,391.32 : 267,631.62 = 125,903.32 : x
  2. Step 2: Convert to fraction form
    178,391.32/267,631.62 = 125,903.32/x
  3. Step 3: Cross multiply
    178,391.32x = 267,631.62 × 125,903.32
  4. Step 4: Simplify right side
    178,391.32x = 33,695,709,494.98
  5. Step 5: Solve for x
    x = 33,695,709,494.98/178,391.32
  6. Step 6: Final answer
    x = 188,886.49

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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.