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Finding the Fourth Proportional to 321,925.34, 482,256.69 and 186,705.34

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Solution

The fourth proportional to 321,925.34, 482,256.69 and 186,705.34 is: 279,691.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,925.34 : 482,256.69 = 186,705.34 : x
  2. Step 2: Convert to fraction form
    321,925.34/482,256.69 = 186,705.34/x
  3. Step 3: Cross multiply
    321,925.34x = 482,256.69 × 186,705.34
  4. Step 4: Simplify right side
    321,925.34x = 90,039,896,862.44
  5. Step 5: Solve for x
    x = 90,039,896,862.44/321,925.34
  6. Step 6: Final answer
    x = 279,691.86

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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.