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Finding the Fourth Proportional to 95,642.34, 143,401.96 and 45,721.32

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Solution

The fourth proportional to 95,642.34, 143,401.96 and 45,721.32 is: 68,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,642.34 : 143,401.96 = 45,721.32 : x
  2. Step 2: Convert to fraction form
    95,642.34/143,401.96 = 45,721.32/x
  3. Step 3: Cross multiply
    95,642.34x = 143,401.96 × 45,721.32
  4. Step 4: Simplify right side
    95,642.34x = 6,556,526,901.79
  5. Step 5: Solve for x
    x = 6,556,526,901.79/95,642.34
  6. Step 6: Final answer
    x = 68,552.56

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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.