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Finding the Fourth Proportional to 95,752.80, 143,629.20 and 25,639.20

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Solution

The fourth proportional to 95,752.80, 143,629.20 and 25,639.20 is: 38,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,752.80 : 143,629.20 = 25,639.20 : x
  2. Step 2: Convert to fraction form
    95,752.80/143,629.20 = 25,639.20/x
  3. Step 3: Cross multiply
    95,752.80x = 143,629.20 × 25,639.20
  4. Step 4: Simplify right side
    95,752.80x = 3,682,537,784.64
  5. Step 5: Solve for x
    x = 3,682,537,784.64/95,752.80
  6. Step 6: Final answer
    x = 38,458.80

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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.