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Finding the Fourth Proportional to 219,337.70, 328,719.90 and 158,751.97

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Solution

The fourth proportional to 219,337.70, 328,719.90 and 158,751.97 is: 237,920.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,337.70 : 328,719.90 = 158,751.97 : x
  2. Step 2: Convert to fraction form
    219,337.70/328,719.90 = 158,751.97/x
  3. Step 3: Cross multiply
    219,337.70x = 328,719.90 × 158,751.97
  4. Step 4: Simplify right side
    219,337.70x = 52,184,930,059.60
  5. Step 5: Solve for x
    x = 52,184,930,059.60/219,337.70
  6. Step 6: Final answer
    x = 237,920.48

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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.