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Finding the Fourth Proportional to 207,608.87, 286,500.24 and 112,115.56

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Solution

The fourth proportional to 207,608.87, 286,500.24 and 112,115.56 is: 154,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,608.87 : 286,500.24 = 112,115.56 : x
  2. Step 2: Convert to fraction form
    207,608.87/286,500.24 = 112,115.56/x
  3. Step 3: Cross multiply
    207,608.87x = 286,500.24 × 112,115.56
  4. Step 4: Simplify right side
    207,608.87x = 32,121,132,854.66
  5. Step 5: Solve for x
    x = 32,121,132,854.66/207,608.87
  6. Step 6: Final answer
    x = 154,719.46

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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.