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Finding the Fourth Proportional to 80,398.56, 110,954.16 and 60,492

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Solution

The fourth proportional to 80,398.56, 110,954.16 and 60,492 is: 83,482.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,398.56 : 110,954.16 = 60,492 : x
  2. Step 2: Convert to fraction form
    80,398.56/110,954.16 = 60,492/x
  3. Step 3: Cross multiply
    80,398.56x = 110,954.16 × 60,492
  4. Step 4: Simplify right side
    80,398.56x = 6,711,839,046.72
  5. Step 5: Solve for x
    x = 6,711,839,046.72/80,398.56
  6. Step 6: Final answer
    x = 83,482.08

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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.