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Finding the Fourth Proportional to 162,321.60, 243,367.20 and 62,443.20

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Solution

The fourth proportional to 162,321.60, 243,367.20 and 62,443.20 is: 93,620.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,321.60 : 243,367.20 = 62,443.20 : x
  2. Step 2: Convert to fraction form
    162,321.60/243,367.20 = 62,443.20/x
  3. Step 3: Cross multiply
    162,321.60x = 243,367.20 × 62,443.20
  4. Step 4: Simplify right side
    162,321.60x = 15,196,626,743.04
  5. Step 5: Solve for x
    x = 15,196,626,743.04/162,321.60
  6. Step 6: Final answer
    x = 93,620.48

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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.