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Finding the Fourth Proportional to 145,759.38, 200,724.42 and 126,630.42

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Solution

The fourth proportional to 145,759.38, 200,724.42 and 126,630.42 is: 174,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,759.38 : 200,724.42 = 126,630.42 : x
  2. Step 2: Convert to fraction form
    145,759.38/200,724.42 = 126,630.42/x
  3. Step 3: Cross multiply
    145,759.38x = 200,724.42 × 126,630.42
  4. Step 4: Simplify right side
    145,759.38x = 25,417,817,608.86
  5. Step 5: Solve for x
    x = 25,417,817,608.86/145,759.38
  6. Step 6: Final answer
    x = 174,382.04

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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.