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Finding the Fourth Proportional to 95,890.65, 143,890.65 and 66,329.70

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Solution

The fourth proportional to 95,890.65, 143,890.65 and 66,329.70 is: 99,532.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,890.65 : 143,890.65 = 66,329.70 : x
  2. Step 2: Convert to fraction form
    95,890.65/143,890.65 = 66,329.70/x
  3. Step 3: Cross multiply
    95,890.65x = 143,890.65 × 66,329.70
  4. Step 4: Simplify right side
    95,890.65x = 9,544,223,647.31
  5. Step 5: Solve for x
    x = 9,544,223,647.31/95,890.65
  6. Step 6: Final answer
    x = 99,532.37

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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.