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Finding the Fourth Proportional to 80,773, 121,179.12 and 25,369

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Solution

The fourth proportional to 80,773, 121,179.12 and 25,369 is: 38,059.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,773 : 121,179.12 = 25,369 : x
  2. Step 2: Convert to fraction form
    80,773/121,179.12 = 25,369/x
  3. Step 3: Cross multiply
    80,773x = 121,179.12 × 25,369
  4. Step 4: Simplify right side
    80,773x = 3,074,193,095.28
  5. Step 5: Solve for x
    x = 3,074,193,095.28/80,773
  6. Step 6: Final answer
    x = 38,059.66

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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.