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Finding the Fourth Proportional to 61,081.74, 92,038.72 and 50,231.48

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Solution

The fourth proportional to 61,081.74, 92,038.72 and 50,231.48 is: 75,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,081.74 : 92,038.72 = 50,231.48 : x
  2. Step 2: Convert to fraction form
    61,081.74/92,038.72 = 50,231.48/x
  3. Step 3: Cross multiply
    61,081.74x = 92,038.72 × 50,231.48
  4. Step 4: Simplify right side
    61,081.74x = 4,623,241,122.91
  5. Step 5: Solve for x
    x = 4,623,241,122.91/61,081.74
  6. Step 6: Final answer
    x = 75,689.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.