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Finding the Fourth Proportional to 126,106.88, 174,031.13 and 69,521.90

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Solution

The fourth proportional to 126,106.88, 174,031.13 and 69,521.90 is: 95,942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,106.88 : 174,031.13 = 69,521.90 : x
  2. Step 2: Convert to fraction form
    126,106.88/174,031.13 = 69,521.90/x
  3. Step 3: Cross multiply
    126,106.88x = 174,031.13 × 69,521.90
  4. Step 4: Simplify right side
    126,106.88x = 12,098,974,120.40
  5. Step 5: Solve for x
    x = 12,098,974,120.40/126,106.88
  6. Step 6: Final answer
    x = 95,942.22

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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.