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Finding the Fourth Proportional to 83,800.80, 115,645.76 and 45,560.32

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Solution

The fourth proportional to 83,800.80, 115,645.76 and 45,560.32 is: 62,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,800.80 : 115,645.76 = 45,560.32 : x
  2. Step 2: Convert to fraction form
    83,800.80/115,645.76 = 45,560.32/x
  3. Step 3: Cross multiply
    83,800.80x = 115,645.76 × 45,560.32
  4. Step 4: Simplify right side
    83,800.80x = 5,268,857,832.24
  5. Step 5: Solve for x
    x = 5,268,857,832.24/83,800.80
  6. Step 6: Final answer
    x = 62,873.60

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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.