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Finding the Fourth Proportional to 95,871.70, 143,699.55 and 45,975.70

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Solution

The fourth proportional to 95,871.70, 143,699.55 and 45,975.70 is: 68,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,871.70 : 143,699.55 = 45,975.70 : x
  2. Step 2: Convert to fraction form
    95,871.70/143,699.55 = 45,975.70/x
  3. Step 3: Cross multiply
    95,871.70x = 143,699.55 × 45,975.70
  4. Step 4: Simplify right side
    95,871.70x = 6,606,687,400.94
  5. Step 5: Solve for x
    x = 6,606,687,400.94/95,871.70
  6. Step 6: Final answer
    x = 68,911.76

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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.