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Finding the Fourth Proportional to 324,602.65, 486,909.39 and 147,111.17

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Solution

The fourth proportional to 324,602.65, 486,909.39 and 147,111.17 is: 220,669.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,602.65 : 486,909.39 = 147,111.17 : x
  2. Step 2: Convert to fraction form
    324,602.65/486,909.39 = 147,111.17/x
  3. Step 3: Cross multiply
    324,602.65x = 486,909.39 × 147,111.17
  4. Step 4: Simplify right side
    324,602.65x = 71,629,810,046.89
  5. Step 5: Solve for x
    x = 71,629,810,046.89/324,602.65
  6. Step 6: Final answer
    x = 220,669.21

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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.