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Finding the Fourth Proportional to 111,482.29, 167,270.33 and 69,397.57

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Solution

The fourth proportional to 111,482.29, 167,270.33 and 69,397.57 is: 104,125.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,482.29 : 167,270.33 = 69,397.57 : x
  2. Step 2: Convert to fraction form
    111,482.29/167,270.33 = 69,397.57/x
  3. Step 3: Cross multiply
    111,482.29x = 167,270.33 × 69,397.57
  4. Step 4: Simplify right side
    111,482.29x = 11,608,154,817.68
  5. Step 5: Solve for x
    x = 11,608,154,817.68/111,482.29
  6. Step 6: Final answer
    x = 104,125.55

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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.