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Finding the Fourth Proportional to 178,046.70, 267,070.05 and 84,734.70

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Solution

The fourth proportional to 178,046.70, 267,070.05 and 84,734.70 is: 127,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,046.70 : 267,070.05 = 84,734.70 : x
  2. Step 2: Convert to fraction form
    178,046.70/267,070.05 = 84,734.70/x
  3. Step 3: Cross multiply
    178,046.70x = 267,070.05 × 84,734.70
  4. Step 4: Simplify right side
    178,046.70x = 22,630,100,565.74
  5. Step 5: Solve for x
    x = 22,630,100,565.74/178,046.70
  6. Step 6: Final answer
    x = 127,102.05

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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.