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Finding the Fourth Proportional to 126,752.72, 174,906.62 and 75,755.30

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Solution

The fourth proportional to 126,752.72, 174,906.62 and 75,755.30 is: 104,535.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,752.72 : 174,906.62 = 75,755.30 : x
  2. Step 2: Convert to fraction form
    126,752.72/174,906.62 = 75,755.30/x
  3. Step 3: Cross multiply
    126,752.72x = 174,906.62 × 75,755.30
  4. Step 4: Simplify right side
    126,752.72x = 13,250,103,271.65
  5. Step 5: Solve for x
    x = 13,250,103,271.65/126,752.72
  6. Step 6: Final answer
    x = 104,535.06

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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.