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Finding the Fourth Proportional to 111,545.59, 167,318.39 and 28,439.59

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Solution

The fourth proportional to 111,545.59, 167,318.39 and 28,439.59 is: 42,659.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,545.59 : 167,318.39 = 28,439.59 : x
  2. Step 2: Convert to fraction form
    111,545.59/167,318.39 = 28,439.59/x
  3. Step 3: Cross multiply
    111,545.59x = 167,318.39 × 28,439.59
  4. Step 4: Simplify right side
    111,545.59x = 4,758,466,411.06
  5. Step 5: Solve for x
    x = 4,758,466,411.06/111,545.59
  6. Step 6: Final answer
    x = 42,659.39

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Double scale
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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.