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Finding the Fourth Proportional to 61,919.16, 92,878.73 and 15,171.63

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Solution

The fourth proportional to 61,919.16, 92,878.73 and 15,171.63 is: 22,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.16 : 92,878.73 = 15,171.63 : x
  2. Step 2: Convert to fraction form
    61,919.16/92,878.73 = 15,171.63/x
  3. Step 3: Cross multiply
    61,919.16x = 92,878.73 × 15,171.63
  4. Step 4: Simplify right side
    61,919.16x = 1,409,121,726.43
  5. Step 5: Solve for x
    x = 1,409,121,726.43/61,919.16
  6. Step 6: Final answer
    x = 22,757.44

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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.