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Finding the Fourth Proportional to 143,792.80, 215,907.90 and 110,550.40

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Solution

The fourth proportional to 143,792.80, 215,907.90 and 110,550.40 is: 165,993.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,792.80 : 215,907.90 = 110,550.40 : x
  2. Step 2: Convert to fraction form
    143,792.80/215,907.90 = 110,550.40/x
  3. Step 3: Cross multiply
    143,792.80x = 215,907.90 × 110,550.40
  4. Step 4: Simplify right side
    143,792.80x = 23,868,704,708.16
  5. Step 5: Solve for x
    x = 23,868,704,708.16/143,792.80
  6. Step 6: Final answer
    x = 165,993.74

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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.