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Finding the Fourth Proportional to 69,402.96, 95,772.44 and 40,718.63

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Solution

The fourth proportional to 69,402.96, 95,772.44 and 40,718.63 is: 56,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,402.96 : 95,772.44 = 40,718.63 : x
  2. Step 2: Convert to fraction form
    69,402.96/95,772.44 = 40,718.63/x
  3. Step 3: Cross multiply
    69,402.96x = 95,772.44 × 40,718.63
  4. Step 4: Simplify right side
    69,402.96x = 3,899,721,866.10
  5. Step 5: Solve for x
    x = 3,899,721,866.10/69,402.96
  6. Step 6: Final answer
    x = 56,189.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.