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Finding the Fourth Proportional to 122,050.59, 168,508.13 and 83,797.80

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Solution

The fourth proportional to 122,050.59, 168,508.13 and 83,797.80 is: 115,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,050.59 : 168,508.13 = 83,797.80 : x
  2. Step 2: Convert to fraction form
    122,050.59/168,508.13 = 83,797.80/x
  3. Step 3: Cross multiply
    122,050.59x = 168,508.13 × 83,797.80
  4. Step 4: Simplify right side
    122,050.59x = 14,120,610,157.13
  5. Step 5: Solve for x
    x = 14,120,610,157.13/122,050.59
  6. Step 6: Final answer
    x = 115,694.73

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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.