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Finding the Fourth Proportional to 61,697.13, 92,545.70 and 20,144.13

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Solution

The fourth proportional to 61,697.13, 92,545.70 and 20,144.13 is: 30,216.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.13 : 92,545.70 = 20,144.13 : x
  2. Step 2: Convert to fraction form
    61,697.13/92,545.70 = 20,144.13/x
  3. Step 3: Cross multiply
    61,697.13x = 92,545.70 × 20,144.13
  4. Step 4: Simplify right side
    61,697.13x = 1,864,252,048.29
  5. Step 5: Solve for x
    x = 1,864,252,048.29/61,697.13
  6. Step 6: Final answer
    x = 30,216.19

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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.