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Finding the Fourth Proportional to 281,096.16, 421,650.38 and 112,695.79

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Solution

The fourth proportional to 281,096.16, 421,650.38 and 112,695.79 is: 169,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,096.16 : 421,650.38 = 112,695.79 : x
  2. Step 2: Convert to fraction form
    281,096.16/421,650.38 = 112,695.79/x
  3. Step 3: Cross multiply
    281,096.16x = 421,650.38 × 112,695.79
  4. Step 4: Simplify right side
    281,096.16x = 47,518,222,677.90
  5. Step 5: Solve for x
    x = 47,518,222,677.90/281,096.16
  6. Step 6: Final answer
    x = 169,046.15

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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.