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Finding the Fourth Proportional to 111,569.31, 167,380.29 and 36,689.67

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Solution

The fourth proportional to 111,569.31, 167,380.29 and 36,689.67 is: 55,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,569.31 : 167,380.29 = 36,689.67 : x
  2. Step 2: Convert to fraction form
    111,569.31/167,380.29 = 36,689.67/x
  3. Step 3: Cross multiply
    111,569.31x = 167,380.29 × 36,689.67
  4. Step 4: Simplify right side
    111,569.31x = 6,141,127,604.60
  5. Step 5: Solve for x
    x = 6,141,127,604.60/111,569.31
  6. Step 6: Final answer
    x = 55,043.16

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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.