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Finding the Fourth Proportional to 329,083.65, 493,677.65 and 126,672.68

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Solution

The fourth proportional to 329,083.65, 493,677.65 and 126,672.68 is: 190,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,083.65 : 493,677.65 = 126,672.68 : x
  2. Step 2: Convert to fraction form
    329,083.65/493,677.65 = 126,672.68/x
  3. Step 3: Cross multiply
    329,083.65x = 493,677.65 × 126,672.68
  4. Step 4: Simplify right side
    329,083.65x = 62,535,472,532.48
  5. Step 5: Solve for x
    x = 62,535,472,532.48/329,083.65
  6. Step 6: Final answer
    x = 190,029.11

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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.