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Finding the Fourth Proportional to 68,488.16, 102,722.67 and 23,508.81

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Solution

The fourth proportional to 68,488.16, 102,722.67 and 23,508.81 is: 35,259.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,488.16 : 102,722.67 = 23,508.81 : x
  2. Step 2: Convert to fraction form
    68,488.16/102,722.67 = 23,508.81/x
  3. Step 3: Cross multiply
    68,488.16x = 102,722.67 × 23,508.81
  4. Step 4: Simplify right side
    68,488.16x = 2,414,887,731.72
  5. Step 5: Solve for x
    x = 2,414,887,731.72/68,488.16
  6. Step 6: Final answer
    x = 35,259.93

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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.