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Finding the Fourth Proportional to 308,627.32, 425,734.20 and 179,551.30

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Solution

The fourth proportional to 308,627.32, 425,734.20 and 179,551.30 is: 247,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,627.32 : 425,734.20 = 179,551.30 : x
  2. Step 2: Convert to fraction form
    308,627.32/425,734.20 = 179,551.30/x
  3. Step 3: Cross multiply
    308,627.32x = 425,734.20 × 179,551.30
  4. Step 4: Simplify right side
    308,627.32x = 76,441,129,064.46
  5. Step 5: Solve for x
    x = 76,441,129,064.46/308,627.32
  6. Step 6: Final answer
    x = 247,681.02

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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.