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Finding the Fourth Proportional to 126,600.74, 174,701.95 and 69,228.69

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Solution

The fourth proportional to 126,600.74, 174,701.95 and 69,228.69 is: 95,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,600.74 : 174,701.95 = 69,228.69 : x
  2. Step 2: Convert to fraction form
    126,600.74/174,701.95 = 69,228.69/x
  3. Step 3: Cross multiply
    126,600.74x = 174,701.95 × 69,228.69
  4. Step 4: Simplify right side
    126,600.74x = 12,094,386,965.87
  5. Step 5: Solve for x
    x = 12,094,386,965.87/126,600.74
  6. Step 6: Final answer
    x = 95,531.72

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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.