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Finding the Fourth Proportional to 508,114.08, 762,171.39 and 129,063.24

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Solution

The fourth proportional to 508,114.08, 762,171.39 and 129,063.24 is: 193,594.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,114.08 : 762,171.39 = 129,063.24 : x
  2. Step 2: Convert to fraction form
    508,114.08/762,171.39 = 129,063.24/x
  3. Step 3: Cross multiply
    508,114.08x = 762,171.39 × 129,063.24
  4. Step 4: Simplify right side
    508,114.08x = 98,368,309,028.70
  5. Step 5: Solve for x
    x = 98,368,309,028.70/508,114.08
  6. Step 6: Final answer
    x = 193,594.93

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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.