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Finding the Fourth Proportional to 73,876.20, 101,879.96 and 58,818.57

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Solution

The fourth proportional to 73,876.20, 101,879.96 and 58,818.57 is: 81,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,876.20 : 101,879.96 = 58,818.57 : x
  2. Step 2: Convert to fraction form
    73,876.20/101,879.96 = 58,818.57/x
  3. Step 3: Cross multiply
    73,876.20x = 101,879.96 × 58,818.57
  4. Step 4: Simplify right side
    73,876.20x = 5,992,433,264.76
  5. Step 5: Solve for x
    x = 5,992,433,264.76/73,876.20
  6. Step 6: Final answer
    x = 81,114.53

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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.