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Finding the Fourth Proportional to 122,947.68, 169,675.84 and 92,679.60

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Solution

The fourth proportional to 122,947.68, 169,675.84 and 92,679.60 is: 127,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,947.68 : 169,675.84 = 92,679.60 : x
  2. Step 2: Convert to fraction form
    122,947.68/169,675.84 = 92,679.60/x
  3. Step 3: Cross multiply
    122,947.68x = 169,675.84 × 92,679.60
  4. Step 4: Simplify right side
    122,947.68x = 15,725,488,980.86
  5. Step 5: Solve for x
    x = 15,725,488,980.86/122,947.68
  6. Step 6: Final answer
    x = 127,903.91

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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.