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Finding the Fourth Proportional to 122,796.39, 169,458.76 and 69,081.45

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Solution

The fourth proportional to 122,796.39, 169,458.76 and 69,081.45 is: 95,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,796.39 : 169,458.76 = 69,081.45 : x
  2. Step 2: Convert to fraction form
    122,796.39/169,458.76 = 69,081.45/x
  3. Step 3: Cross multiply
    122,796.39x = 169,458.76 × 69,081.45
  4. Step 4: Simplify right side
    122,796.39x = 11,706,456,856.00
  5. Step 5: Solve for x
    x = 11,706,456,856.00/122,796.39
  6. Step 6: Final answer
    x = 95,332.26

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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.