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Finding the Fourth Proportional to 65,367.33, 90,176.96 and 38,496.98

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Solution

The fourth proportional to 65,367.33, 90,176.96 and 38,496.98 is: 53,108.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367.33 : 90,176.96 = 38,496.98 : x
  2. Step 2: Convert to fraction form
    65,367.33/90,176.96 = 38,496.98/x
  3. Step 3: Cross multiply
    65,367.33x = 90,176.96 × 38,496.98
  4. Step 4: Simplify right side
    65,367.33x = 3,471,539,982.21
  5. Step 5: Solve for x
    x = 3,471,539,982.21/65,367.33
  6. Step 6: Final answer
    x = 53,108.18

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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.