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Finding the Fourth Proportional to 104,894.32, 144,753.36 and 57,147.52

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Solution

The fourth proportional to 104,894.32, 144,753.36 and 57,147.52 is: 78,863.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,894.32 : 144,753.36 = 57,147.52 : x
  2. Step 2: Convert to fraction form
    104,894.32/144,753.36 = 57,147.52/x
  3. Step 3: Cross multiply
    104,894.32x = 144,753.36 × 57,147.52
  4. Step 4: Simplify right side
    104,894.32x = 8,272,295,535.67
  5. Step 5: Solve for x
    x = 8,272,295,535.67/104,894.32
  6. Step 6: Final answer
    x = 78,863.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.