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Finding the Fourth Proportional to 126,988.55, 175,246.17 and 69,633.11

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Solution

The fourth proportional to 126,988.55, 175,246.17 and 69,633.11 is: 96,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,988.55 : 175,246.17 = 69,633.11 : x
  2. Step 2: Convert to fraction form
    126,988.55/175,246.17 = 69,633.11/x
  3. Step 3: Cross multiply
    126,988.55x = 175,246.17 × 69,633.11
  4. Step 4: Simplify right side
    126,988.55x = 12,202,935,832.69
  5. Step 5: Solve for x
    x = 12,202,935,832.69/126,988.55
  6. Step 6: Final answer
    x = 96,094.77

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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.