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Finding the Fourth Proportional to 663,423.20, 995,134.80 and 164,787.20

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Solution

The fourth proportional to 663,423.20, 995,134.80 and 164,787.20 is: 247,180.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,423.20 : 995,134.80 = 164,787.20 : x
  2. Step 2: Convert to fraction form
    663,423.20/995,134.80 = 164,787.20/x
  3. Step 3: Cross multiply
    663,423.20x = 995,134.80 × 164,787.20
  4. Step 4: Simplify right side
    663,423.20x = 163,985,477,314.56
  5. Step 5: Solve for x
    x = 163,985,477,314.56/663,423.20
  6. Step 6: Final answer
    x = 247,180.80

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Similar ratio
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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.