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Finding the Fourth Proportional to 358,480.80, 537,721.17 and 109,162.80

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Solution

The fourth proportional to 358,480.80, 537,721.17 and 109,162.80 is: 163,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,480.80 : 537,721.17 = 109,162.80 : x
  2. Step 2: Convert to fraction form
    358,480.80/537,721.17 = 109,162.80/x
  3. Step 3: Cross multiply
    358,480.80x = 537,721.17 × 109,162.80
  4. Step 4: Simplify right side
    358,480.80x = 58,699,148,536.48
  5. Step 5: Solve for x
    x = 58,699,148,536.48/358,480.80
  6. Step 6: Final answer
    x = 163,744.19

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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.