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Finding the Fourth Proportional to 144,772.70, 217,159.05 and 92,414.30

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Solution

The fourth proportional to 144,772.70, 217,159.05 and 92,414.30 is: 138,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,772.70 : 217,159.05 = 92,414.30 : x
  2. Step 2: Convert to fraction form
    144,772.70/217,159.05 = 92,414.30/x
  3. Step 3: Cross multiply
    144,772.70x = 217,159.05 × 92,414.30
  4. Step 4: Simplify right side
    144,772.70x = 20,068,601,594.42
  5. Step 5: Solve for x
    x = 20,068,601,594.42/144,772.70
  6. Step 6: Final answer
    x = 138,621.45

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Similar ratio
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1.5x scale

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.