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Finding the Fourth Proportional to 219,134.40, 329,047.20 and 125,822.40

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Solution

The fourth proportional to 219,134.40, 329,047.20 and 125,822.40 is: 188,932.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,134.40 : 329,047.20 = 125,822.40 : x
  2. Step 2: Convert to fraction form
    219,134.40/329,047.20 = 125,822.40/x
  3. Step 3: Cross multiply
    219,134.40x = 329,047.20 × 125,822.40
  4. Step 4: Simplify right side
    219,134.40x = 41,401,508,417.28
  5. Step 5: Solve for x
    x = 41,401,508,417.28/219,134.40
  6. Step 6: Final answer
    x = 188,932.04

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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.