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Finding the Fourth Proportional to 95,642.96, 143,291.40 and 53,472.56

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Solution

The fourth proportional to 95,642.96, 143,291.40 and 53,472.56 is: 80,112.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,642.96 : 143,291.40 = 53,472.56 : x
  2. Step 2: Convert to fraction form
    95,642.96/143,291.40 = 53,472.56/x
  3. Step 3: Cross multiply
    95,642.96x = 143,291.40 × 53,472.56
  4. Step 4: Simplify right side
    95,642.96x = 7,662,157,983.98
  5. Step 5: Solve for x
    x = 7,662,157,983.98/95,642.96
  6. Step 6: Final answer
    x = 80,112.10

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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.