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Finding the Fourth Proportional to 122,923.75, 169,624.44 and 75,167.88

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Solution

The fourth proportional to 122,923.75, 169,624.44 and 75,167.88 is: 103,725.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,923.75 : 169,624.44 = 75,167.88 : x
  2. Step 2: Convert to fraction form
    122,923.75/169,624.44 = 75,167.88/x
  3. Step 3: Cross multiply
    122,923.75x = 169,624.44 × 75,167.88
  4. Step 4: Simplify right side
    122,923.75x = 12,750,309,550.99
  5. Step 5: Solve for x
    x = 12,750,309,550.99/122,923.75
  6. Step 6: Final answer
    x = 103,725.35

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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.