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Finding the Fourth Proportional to 219,387.36, 329,034.24 and 69,641.04

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Solution

The fourth proportional to 219,387.36, 329,034.24 and 69,641.04 is: 104,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,387.36 : 329,034.24 = 69,641.04 : x
  2. Step 2: Convert to fraction form
    219,387.36/329,034.24 = 69,641.04/x
  3. Step 3: Cross multiply
    219,387.36x = 329,034.24 × 69,641.04
  4. Step 4: Simplify right side
    219,387.36x = 22,914,286,669.21
  5. Step 5: Solve for x
    x = 22,914,286,669.21/219,387.36
  6. Step 6: Final answer
    x = 104,446.70

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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.