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Finding the Fourth Proportional to 132,466.80, 198,700.20 and 117,951.60

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Solution

The fourth proportional to 132,466.80, 198,700.20 and 117,951.60 is: 176,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,466.80 : 198,700.20 = 117,951.60 : x
  2. Step 2: Convert to fraction form
    132,466.80/198,700.20 = 117,951.60/x
  3. Step 3: Cross multiply
    132,466.80x = 198,700.20 × 117,951.60
  4. Step 4: Simplify right side
    132,466.80x = 23,437,006,510.32
  5. Step 5: Solve for x
    x = 23,437,006,510.32/132,466.80
  6. Step 6: Final answer
    x = 176,927.40

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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.