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Finding the Fourth Proportional to 178,499.62, 267,384.90 and 99,655.84

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Solution

The fourth proportional to 178,499.62, 267,384.90 and 99,655.84 is: 149,280.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,499.62 : 267,384.90 = 99,655.84 : x
  2. Step 2: Convert to fraction form
    178,499.62/267,384.90 = 99,655.84/x
  3. Step 3: Cross multiply
    178,499.62x = 267,384.90 × 99,655.84
  4. Step 4: Simplify right side
    178,499.62x = 26,646,466,812.82
  5. Step 5: Solve for x
    x = 26,646,466,812.82/178,499.62
  6. Step 6: Final answer
    x = 149,280.24

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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.