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Finding the Fourth Proportional to 316,929.16, 437,362.86 and 173,694.52

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Solution

The fourth proportional to 316,929.16, 437,362.86 and 173,694.52 is: 239,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,929.16 : 437,362.86 = 173,694.52 : x
  2. Step 2: Convert to fraction form
    316,929.16/437,362.86 = 173,694.52/x
  3. Step 3: Cross multiply
    316,929.16x = 437,362.86 × 173,694.52
  4. Step 4: Simplify right side
    316,929.16x = 75,967,532,033.53
  5. Step 5: Solve for x
    x = 75,967,532,033.53/316,929.16
  6. Step 6: Final answer
    x = 239,698.78

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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.