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Finding the Fourth Proportional to 61,045.62, 91,404.36 and 38,738.22

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Solution

The fourth proportional to 61,045.62, 91,404.36 and 38,738.22 is: 58,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,045.62 : 91,404.36 = 38,738.22 : x
  2. Step 2: Convert to fraction form
    61,045.62/91,404.36 = 38,738.22/x
  3. Step 3: Cross multiply
    61,045.62x = 91,404.36 × 38,738.22
  4. Step 4: Simplify right side
    61,045.62x = 3,540,842,206.64
  5. Step 5: Solve for x
    x = 3,540,842,206.64/61,045.62
  6. Step 6: Final answer
    x = 58,003.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.