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Finding the Fourth Proportional to 69,366.70, 95,726.38 and 39,153.30

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Solution

The fourth proportional to 69,366.70, 95,726.38 and 39,153.30 is: 54,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,366.70 : 95,726.38 = 39,153.30 : x
  2. Step 2: Convert to fraction form
    69,366.70/95,726.38 = 39,153.30/x
  3. Step 3: Cross multiply
    69,366.70x = 95,726.38 × 39,153.30
  4. Step 4: Simplify right side
    69,366.70x = 3,748,003,674.05
  5. Step 5: Solve for x
    x = 3,748,003,674.05/69,366.70
  6. Step 6: Final answer
    x = 54,031.74

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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.