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Finding the Fourth Proportional to 207,630.70, 311,251.65 and 162,627.10

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Solution

The fourth proportional to 207,630.70, 311,251.65 and 162,627.10 is: 243,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,630.70 : 311,251.65 = 162,627.10 : x
  2. Step 2: Convert to fraction form
    207,630.70/311,251.65 = 162,627.10/x
  3. Step 3: Cross multiply
    207,630.70x = 311,251.65 × 162,627.10
  4. Step 4: Simplify right side
    207,630.70x = 50,617,953,209.72
  5. Step 5: Solve for x
    x = 50,617,953,209.72/207,630.70
  6. Step 6: Final answer
    x = 243,788.39

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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.