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Finding the Fourth Proportional to 78,367.20, 117,550.80 and 22,963.20

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Solution

The fourth proportional to 78,367.20, 117,550.80 and 22,963.20 is: 34,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,367.20 : 117,550.80 = 22,963.20 : x
  2. Step 2: Convert to fraction form
    78,367.20/117,550.80 = 22,963.20/x
  3. Step 3: Cross multiply
    78,367.20x = 117,550.80 × 22,963.20
  4. Step 4: Simplify right side
    78,367.20x = 2,699,342,530.56
  5. Step 5: Solve for x
    x = 2,699,342,530.56/78,367.20
  6. Step 6: Final answer
    x = 34,444.80

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1.5x scale

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.