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Finding the Fourth Proportional to 292,842.10, 439,372.49 and 115,472.75

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Solution

The fourth proportional to 292,842.10, 439,372.49 and 115,472.75 is: 173,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,842.10 : 439,372.49 = 115,472.75 : x
  2. Step 2: Convert to fraction form
    292,842.10/439,372.49 = 115,472.75/x
  3. Step 3: Cross multiply
    292,842.10x = 439,372.49 × 115,472.75
  4. Step 4: Simplify right side
    292,842.10x = 50,735,549,694.65
  5. Step 5: Solve for x
    x = 50,735,549,694.65/292,842.10
  6. Step 6: Final answer
    x = 173,252.24

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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.