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Finding the Fourth Proportional to 95,763.70, 143,645.55 and 54,291.70

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Solution

The fourth proportional to 95,763.70, 143,645.55 and 54,291.70 is: 81,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,763.70 : 143,645.55 = 54,291.70 : x
  2. Step 2: Convert to fraction form
    95,763.70/143,645.55 = 54,291.70/x
  3. Step 3: Cross multiply
    95,763.70x = 143,645.55 × 54,291.70
  4. Step 4: Simplify right side
    95,763.70x = 7,798,761,106.94
  5. Step 5: Solve for x
    x = 7,798,761,106.94/95,763.70
  6. Step 6: Final answer
    x = 81,437.55

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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.