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Finding the Fourth Proportional to 61,867.43, 92,590.80 and 38,189.91

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Solution

The fourth proportional to 61,867.43, 92,590.80 and 38,189.91 is: 57,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,867.43 : 92,590.80 = 38,189.91 : x
  2. Step 2: Convert to fraction form
    61,867.43/92,590.80 = 38,189.91/x
  3. Step 3: Cross multiply
    61,867.43x = 92,590.80 × 38,189.91
  4. Step 4: Simplify right side
    61,867.43x = 3,536,034,522.83
  5. Step 5: Solve for x
    x = 3,536,034,522.83/61,867.43
  6. Step 6: Final answer
    x = 57,155.03

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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.