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Finding the Fourth Proportional to 178,461.60, 267,488.88 and 84,834.72

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Solution

The fourth proportional to 178,461.60, 267,488.88 and 84,834.72 is: 127,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,461.60 : 267,488.88 = 84,834.72 : x
  2. Step 2: Convert to fraction form
    178,461.60/267,488.88 = 84,834.72/x
  3. Step 3: Cross multiply
    178,461.60x = 267,488.88 × 84,834.72
  4. Step 4: Simplify right side
    178,461.60x = 22,692,344,237.91
  5. Step 5: Solve for x
    x = 22,692,344,237.91/178,461.60
  6. Step 6: Final answer
    x = 127,155.33

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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.