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Finding the Fourth Proportional to 95,880.78, 143,822.34 and 36,720

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Solution

The fourth proportional to 95,880.78, 143,822.34 and 36,720 is: 55,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,880.78 : 143,822.34 = 36,720 : x
  2. Step 2: Convert to fraction form
    95,880.78/143,822.34 = 36,720/x
  3. Step 3: Cross multiply
    95,880.78x = 143,822.34 × 36,720
  4. Step 4: Simplify right side
    95,880.78x = 5,281,156,324.80
  5. Step 5: Solve for x
    x = 5,281,156,324.80/95,880.78
  6. Step 6: Final answer
    x = 55,080.45

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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.