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Finding the Fourth Proportional to 178,432.40, 267,468.60 and 66,040.40

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Solution

The fourth proportional to 178,432.40, 267,468.60 and 66,040.40 is: 98,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,432.40 : 267,468.60 = 66,040.40 : x
  2. Step 2: Convert to fraction form
    178,432.40/267,468.60 = 66,040.40/x
  3. Step 3: Cross multiply
    178,432.40x = 267,468.60 × 66,040.40
  4. Step 4: Simplify right side
    178,432.40x = 17,663,733,331.44
  5. Step 5: Solve for x
    x = 17,663,733,331.44/178,432.40
  6. Step 6: Final answer
    x = 98,993.98

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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.