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Finding the Fourth Proportional to 124,241.76, 171,448.94 and 75,924.48

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Solution

The fourth proportional to 124,241.76, 171,448.94 and 75,924.48 is: 104,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,241.76 : 171,448.94 = 75,924.48 : x
  2. Step 2: Convert to fraction form
    124,241.76/171,448.94 = 75,924.48/x
  3. Step 3: Cross multiply
    124,241.76x = 171,448.94 × 75,924.48
  4. Step 4: Simplify right side
    124,241.76x = 13,017,171,236.43
  5. Step 5: Solve for x
    x = 13,017,171,236.43/124,241.76
  6. Step 6: Final answer
    x = 104,772.91

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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.