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Finding the Fourth Proportional to 162,720.60, 243,605.70 and 116,064.60

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Solution

The fourth proportional to 162,720.60, 243,605.70 and 116,064.60 is: 173,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,720.60 : 243,605.70 = 116,064.60 : x
  2. Step 2: Convert to fraction form
    162,720.60/243,605.70 = 116,064.60/x
  3. Step 3: Cross multiply
    162,720.60x = 243,605.70 × 116,064.60
  4. Step 4: Simplify right side
    162,720.60x = 28,273,998,128.22
  5. Step 5: Solve for x
    x = 28,273,998,128.22/162,720.60
  6. Step 6: Final answer
    x = 173,757.95

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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.