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Finding the Fourth Proportional to 122,799.77, 169,463.39 and 69,084.77

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Solution

The fourth proportional to 122,799.77, 169,463.39 and 69,084.77 is: 95,336.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,799.77 : 169,463.39 = 69,084.77 : x
  2. Step 2: Convert to fraction form
    122,799.77/169,463.39 = 69,084.77/x
  3. Step 3: Cross multiply
    122,799.77x = 169,463.39 × 69,084.77
  4. Step 4: Simplify right side
    122,799.77x = 11,707,338,128.83
  5. Step 5: Solve for x
    x = 11,707,338,128.83/122,799.77
  6. Step 6: Final answer
    x = 95,336.81

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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.