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Finding the Fourth Proportional to 104,987.53, 144,883.45 and 57,241.68

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Solution

The fourth proportional to 104,987.53, 144,883.45 and 57,241.68 is: 78,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,987.53 : 144,883.45 = 57,241.68 : x
  2. Step 2: Convert to fraction form
    104,987.53/144,883.45 = 57,241.68/x
  3. Step 3: Cross multiply
    104,987.53x = 144,883.45 × 57,241.68
  4. Step 4: Simplify right side
    104,987.53x = 8,293,372,082.20
  5. Step 5: Solve for x
    x = 8,293,372,082.20/104,987.53
  6. Step 6: Final answer
    x = 78,993.88

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1.5x scale

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.