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Finding the Fourth Proportional to 178,488.18, 267,646.08 and 103,627.20

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Solution

The fourth proportional to 178,488.18, 267,646.08 and 103,627.20 is: 155,390.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,488.18 : 267,646.08 = 103,627.20 : x
  2. Step 2: Convert to fraction form
    178,488.18/267,646.08 = 103,627.20/x
  3. Step 3: Cross multiply
    178,488.18x = 267,646.08 × 103,627.20
  4. Step 4: Simplify right side
    178,488.18x = 27,735,413,861.38
  5. Step 5: Solve for x
    x = 27,735,413,861.38/178,488.18
  6. Step 6: Final answer
    x = 155,390.76

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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.