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Finding the Fourth Proportional to 218,935.32, 328,300.92 and 113,726.04

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Solution

The fourth proportional to 218,935.32, 328,300.92 and 113,726.04 is: 170,536.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,935.32 : 328,300.92 = 113,726.04 : x
  2. Step 2: Convert to fraction form
    218,935.32/328,300.92 = 113,726.04/x
  3. Step 3: Cross multiply
    218,935.32x = 328,300.92 × 113,726.04
  4. Step 4: Simplify right side
    218,935.32x = 37,336,363,559.96
  5. Step 5: Solve for x
    x = 37,336,363,559.96/218,935.32
  6. Step 6: Final answer
    x = 170,536.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.