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Finding the Fourth Proportional to 219,909.33, 329,864.81 and 93,531.51

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Solution

The fourth proportional to 219,909.33, 329,864.81 and 93,531.51 is: 140,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,909.33 : 329,864.81 = 93,531.51 : x
  2. Step 2: Convert to fraction form
    219,909.33/329,864.81 = 93,531.51/x
  3. Step 3: Cross multiply
    219,909.33x = 329,864.81 × 93,531.51
  4. Step 4: Simplify right side
    219,909.33x = 30,852,753,775.16
  5. Step 5: Solve for x
    x = 30,852,753,775.16/219,909.33
  6. Step 6: Final answer
    x = 140,297.61

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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.