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Finding the Fourth Proportional to 88,245.96, 121,780.19 and 47,959.71

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Solution

The fourth proportional to 88,245.96, 121,780.19 and 47,959.71 is: 66,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,245.96 : 121,780.19 = 47,959.71 : x
  2. Step 2: Convert to fraction form
    88,245.96/121,780.19 = 47,959.71/x
  3. Step 3: Cross multiply
    88,245.96x = 121,780.19 × 47,959.71
  4. Step 4: Simplify right side
    88,245.96x = 5,840,542,356.35
  5. Step 5: Solve for x
    x = 5,840,542,356.35/88,245.96
  6. Step 6: Final answer
    x = 66,184.81

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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.