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Finding the Fourth Proportional to 80,437.92, 111,013.90 and 46,454.66

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Solution

The fourth proportional to 80,437.92, 111,013.90 and 46,454.66 is: 64,112.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,437.92 : 111,013.90 = 46,454.66 : x
  2. Step 2: Convert to fraction form
    80,437.92/111,013.90 = 46,454.66/x
  3. Step 3: Cross multiply
    80,437.92x = 111,013.90 × 46,454.66
  4. Step 4: Simplify right side
    80,437.92x = 5,157,112,979.77
  5. Step 5: Solve for x
    x = 5,157,112,979.77/80,437.92
  6. Step 6: Final answer
    x = 64,112.96

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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.