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Finding the Fourth Proportional to 220,554.69, 330,299.13 and 125,496.87

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Solution

The fourth proportional to 220,554.69, 330,299.13 and 125,496.87 is: 187,942.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,554.69 : 330,299.13 = 125,496.87 : x
  2. Step 2: Convert to fraction form
    220,554.69/330,299.13 = 125,496.87/x
  3. Step 3: Cross multiply
    220,554.69x = 330,299.13 × 125,496.87
  4. Step 4: Simplify right side
    220,554.69x = 41,451,506,210.71
  5. Step 5: Solve for x
    x = 41,451,506,210.71/220,554.69
  6. Step 6: Final answer
    x = 187,942.08

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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.