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Finding the Fourth Proportional to 112,203.41, 154,854.41 and 64,456.65

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Solution

The fourth proportional to 112,203.41, 154,854.41 and 64,456.65 is: 88,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,203.41 : 154,854.41 = 64,456.65 : x
  2. Step 2: Convert to fraction form
    112,203.41/154,854.41 = 64,456.65/x
  3. Step 3: Cross multiply
    112,203.41x = 154,854.41 × 64,456.65
  4. Step 4: Simplify right side
    112,203.41x = 9,981,396,184.04
  5. Step 5: Solve for x
    x = 9,981,396,184.04/112,203.41
  6. Step 6: Final answer
    x = 88,958.05

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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.