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Finding the Fourth Proportional to 122,937.60, 169,662.96 and 69,228.48

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Solution

The fourth proportional to 122,937.60, 169,662.96 and 69,228.48 is: 95,540.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,937.60 : 169,662.96 = 69,228.48 : x
  2. Step 2: Convert to fraction form
    122,937.60/169,662.96 = 69,228.48/x
  3. Step 3: Cross multiply
    122,937.60x = 169,662.96 × 69,228.48
  4. Step 4: Simplify right side
    122,937.60x = 11,745,508,833.10
  5. Step 5: Solve for x
    x = 11,745,508,833.10/122,937.60
  6. Step 6: Final answer
    x = 95,540.41

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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.