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Finding the Fourth Proportional to 178,436.40, 267,474.60 and 66,044.40

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Solution

The fourth proportional to 178,436.40, 267,474.60 and 66,044.40 is: 98,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,436.40 : 267,474.60 = 66,044.40 : x
  2. Step 2: Convert to fraction form
    178,436.40/267,474.60 = 66,044.40/x
  3. Step 3: Cross multiply
    178,436.40x = 267,474.60 × 66,044.40
  4. Step 4: Simplify right side
    178,436.40x = 17,665,199,472.24
  5. Step 5: Solve for x
    x = 17,665,199,472.24/178,436.40
  6. Step 6: Final answer
    x = 98,999.98

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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.