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Finding the Fourth Proportional to 126,097.20, 174,008.52 and 69,505.20

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Solution

The fourth proportional to 126,097.20, 174,008.52 and 69,505.20 is: 95,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,097.20 : 174,008.52 = 69,505.20 : x
  2. Step 2: Convert to fraction form
    126,097.20/174,008.52 = 69,505.20/x
  3. Step 3: Cross multiply
    126,097.20x = 174,008.52 × 69,505.20
  4. Step 4: Simplify right side
    126,097.20x = 12,094,496,984.30
  5. Step 5: Solve for x
    x = 12,094,496,984.30/126,097.20
  6. Step 6: Final answer
    x = 95,914.08

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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.