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Finding the Fourth Proportional to 126,708.92, 174,864.42 and 73,002.20

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Solution

The fourth proportional to 126,708.92, 174,864.42 and 73,002.20 is: 100,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,708.92 : 174,864.42 = 73,002.20 : x
  2. Step 2: Convert to fraction form
    126,708.92/174,864.42 = 73,002.20/x
  3. Step 3: Cross multiply
    126,708.92x = 174,864.42 × 73,002.20
  4. Step 4: Simplify right side
    126,708.92x = 12,765,487,361.72
  5. Step 5: Solve for x
    x = 12,765,487,361.72/126,708.92
  6. Step 6: Final answer
    x = 100,746.56

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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.