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Finding the Fourth Proportional to 61,808.13, 92,490.66 and 53,516.97

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Solution

The fourth proportional to 61,808.13, 92,490.66 and 53,516.97 is: 80,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.13 : 92,490.66 = 53,516.97 : x
  2. Step 2: Convert to fraction form
    61,808.13/92,490.66 = 53,516.97/x
  3. Step 3: Cross multiply
    61,808.13x = 92,490.66 × 53,516.97
  4. Step 4: Simplify right side
    61,808.13x = 4,949,819,876.50
  5. Step 5: Solve for x
    x = 4,949,819,876.50/61,808.13
  6. Step 6: Final answer
    x = 80,083.64

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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.