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Finding the Fourth Proportional to 219,472.70, 329,318.40 and 124,775.60

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Solution

The fourth proportional to 219,472.70, 329,318.40 and 124,775.60 is: 187,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,472.70 : 329,318.40 = 124,775.60 : x
  2. Step 2: Convert to fraction form
    219,472.70/329,318.40 = 124,775.60/x
  3. Step 3: Cross multiply
    219,472.70x = 329,318.40 × 124,775.60
  4. Step 4: Simplify right side
    219,472.70x = 41,090,900,951.04
  5. Step 5: Solve for x
    x = 41,090,900,951.04/219,472.70
  6. Step 6: Final answer
    x = 187,225.57

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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.