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Finding the Fourth Proportional to 317,446.44, 438,061.68 and 174,203.61

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Solution

The fourth proportional to 317,446.44, 438,061.68 and 174,203.61 is: 240,393.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,446.44 : 438,061.68 = 174,203.61 : x
  2. Step 2: Convert to fraction form
    317,446.44/438,061.68 = 174,203.61/x
  3. Step 3: Cross multiply
    317,446.44x = 438,061.68 × 174,203.61
  4. Step 4: Simplify right side
    317,446.44x = 76,311,926,058.66
  5. Step 5: Solve for x
    x = 76,311,926,058.66/317,446.44
  6. Step 6: Final answer
    x = 240,393.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.