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Finding the Fourth Proportional to 122,794.38, 169,454.70 and 69,079.77

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Solution

The fourth proportional to 122,794.38, 169,454.70 and 69,079.77 is: 95,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,794.38 : 169,454.70 = 69,079.77 : x
  2. Step 2: Convert to fraction form
    122,794.38/169,454.70 = 69,079.77/x
  3. Step 3: Cross multiply
    122,794.38x = 169,454.70 × 69,079.77
  4. Step 4: Simplify right side
    122,794.38x = 11,705,891,701.42
  5. Step 5: Solve for x
    x = 11,705,891,701.42/122,794.38
  6. Step 6: Final answer
    x = 95,329.21

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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.