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Finding the Fourth Proportional to 104,906.53, 144,772.67 and 57,159.86

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Solution

The fourth proportional to 104,906.53, 144,772.67 and 57,159.86 is: 78,881.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,906.53 : 144,772.67 = 57,159.86 : x
  2. Step 2: Convert to fraction form
    104,906.53/144,772.67 = 57,159.86/x
  3. Step 3: Cross multiply
    104,906.53x = 144,772.67 × 57,159.86
  4. Step 4: Simplify right side
    104,906.53x = 8,275,185,549.03
  5. Step 5: Solve for x
    x = 8,275,185,549.03/104,906.53
  6. Step 6: Final answer
    x = 78,881.51

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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.