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Finding the Fourth Proportional to 192,649.12, 265,909.21 and 112,092.21

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Solution

The fourth proportional to 192,649.12, 265,909.21 and 112,092.21 is: 154,718.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,649.12 : 265,909.21 = 112,092.21 : x
  2. Step 2: Convert to fraction form
    192,649.12/265,909.21 = 112,092.21/x
  3. Step 3: Cross multiply
    192,649.12x = 265,909.21 × 112,092.21
  4. Step 4: Simplify right side
    192,649.12x = 29,806,350,728.02
  5. Step 5: Solve for x
    x = 29,806,350,728.02/192,649.12
  6. Step 6: Final answer
    x = 154,718.34

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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.