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Finding the Fourth Proportional to 122,750.92, 169,355.54 and 100,050.88

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Solution

The fourth proportional to 122,750.92, 169,355.54 and 100,050.88 is: 138,037.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,750.92 : 169,355.54 = 100,050.88 : x
  2. Step 2: Convert to fraction form
    122,750.92/169,355.54 = 100,050.88/x
  3. Step 3: Cross multiply
    122,750.92x = 169,355.54 × 100,050.88
  4. Step 4: Simplify right side
    122,750.92x = 16,944,170,809.88
  5. Step 5: Solve for x
    x = 16,944,170,809.88/122,750.92
  6. Step 6: Final answer
    x = 138,037.02

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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.