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Finding the Fourth Proportional to 178,337.81, 267,428.95 and 67,452.05

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Solution

The fourth proportional to 178,337.81, 267,428.95 and 67,452.05 is: 101,148.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,337.81 : 267,428.95 = 67,452.05 : x
  2. Step 2: Convert to fraction form
    178,337.81/267,428.95 = 67,452.05/x
  3. Step 3: Cross multiply
    178,337.81x = 267,428.95 × 67,452.05
  4. Step 4: Simplify right side
    178,337.81x = 18,038,629,902.50
  5. Step 5: Solve for x
    x = 18,038,629,902.50/178,337.81
  6. Step 6: Final answer
    x = 101,148.66

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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.