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Finding the Fourth Proportional to 316,515.92, 436,799.66 and 173,275.52

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Solution

The fourth proportional to 316,515.92, 436,799.66 and 173,275.52 is: 239,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,515.92 : 436,799.66 = 173,275.52 : x
  2. Step 2: Convert to fraction form
    316,515.92/436,799.66 = 173,275.52/x
  3. Step 3: Cross multiply
    316,515.92x = 436,799.66 × 173,275.52
  4. Step 4: Simplify right side
    316,515.92x = 75,686,685,171.95
  5. Step 5: Solve for x
    x = 75,686,685,171.95/316,515.92
  6. Step 6: Final answer
    x = 239,124.42

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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.