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Finding the Fourth Proportional to 126,711.60, 174,844.71 and 75,713.55

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Solution

The fourth proportional to 126,711.60, 174,844.71 and 75,713.55 is: 104,474.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,711.60 : 174,844.71 = 75,713.55 : x
  2. Step 2: Convert to fraction form
    126,711.60/174,844.71 = 75,713.55/x
  3. Step 3: Cross multiply
    126,711.60x = 174,844.71 × 75,713.55
  4. Step 4: Simplify right side
    126,711.60x = 13,238,113,692.82
  5. Step 5: Solve for x
    x = 13,238,113,692.82/126,711.60
  6. Step 6: Final answer
    x = 104,474.36

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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.