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Finding the Fourth Proportional to 145,248.96, 200,500.11 and 91,523.49

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Solution

The fourth proportional to 145,248.96, 200,500.11 and 91,523.49 is: 126,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,248.96 : 200,500.11 = 91,523.49 : x
  2. Step 2: Convert to fraction form
    145,248.96/200,500.11 = 91,523.49/x
  3. Step 3: Cross multiply
    145,248.96x = 200,500.11 × 91,523.49
  4. Step 4: Simplify right side
    145,248.96x = 18,350,469,812.58
  5. Step 5: Solve for x
    x = 18,350,469,812.58/145,248.96
  6. Step 6: Final answer
    x = 126,338.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.