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Finding the Fourth Proportional to 133,815.20, 200,492.40 and 63,543.20

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Solution

The fourth proportional to 133,815.20, 200,492.40 and 63,543.20 is: 95,205.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,815.20 : 200,492.40 = 63,543.20 : x
  2. Step 2: Convert to fraction form
    133,815.20/200,492.40 = 63,543.20/x
  3. Step 3: Cross multiply
    133,815.20x = 200,492.40 × 63,543.20
  4. Step 4: Simplify right side
    133,815.20x = 12,739,928,671.68
  5. Step 5: Solve for x
    x = 12,739,928,671.68/133,815.20
  6. Step 6: Final answer
    x = 95,205.39

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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.