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Finding the Fourth Proportional to 219,885.90, 329,865.30 and 93,586.65

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Solution

The fourth proportional to 219,885.90, 329,865.30 and 93,586.65 is: 140,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,885.90 : 329,865.30 = 93,586.65 : x
  2. Step 2: Convert to fraction form
    219,885.90/329,865.30 = 93,586.65/x
  3. Step 3: Cross multiply
    219,885.90x = 329,865.30 × 93,586.65
  4. Step 4: Simplify right side
    219,885.90x = 30,870,988,378.25
  5. Step 5: Solve for x
    x = 30,870,988,378.25/219,885.90
  6. Step 6: Final answer
    x = 140,395.49

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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.