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Finding the Fourth Proportional to 115,818.66, 159,800.85 and 68,062.68

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Solution

The fourth proportional to 115,818.66, 159,800.85 and 68,062.68 is: 93,909.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,818.66 : 159,800.85 = 68,062.68 : x
  2. Step 2: Convert to fraction form
    115,818.66/159,800.85 = 68,062.68/x
  3. Step 3: Cross multiply
    115,818.66x = 159,800.85 × 68,062.68
  4. Step 4: Simplify right side
    115,818.66x = 10,876,474,117.28
  5. Step 5: Solve for x
    x = 10,876,474,117.28/115,818.66
  6. Step 6: Final answer
    x = 93,909.51

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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.