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Finding the Fourth Proportional to 97,459.80, 134,493.07 and 54,439.89

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Solution

The fourth proportional to 97,459.80, 134,493.07 and 54,439.89 is: 75,126.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,459.80 : 134,493.07 = 54,439.89 : x
  2. Step 2: Convert to fraction form
    97,459.80/134,493.07 = 54,439.89/x
  3. Step 3: Cross multiply
    97,459.80x = 134,493.07 × 54,439.89
  4. Step 4: Simplify right side
    97,459.80x = 7,321,787,936.56
  5. Step 5: Solve for x
    x = 7,321,787,936.56/97,459.80
  6. Step 6: Final answer
    x = 75,126.24

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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.