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Finding the Fourth Proportional to 111,459.60, 167,236.30 and 69,374.89

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Solution

The fourth proportional to 111,459.60, 167,236.30 and 69,374.89 is: 104,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,459.60 : 167,236.30 = 69,374.89 : x
  2. Step 2: Convert to fraction form
    111,459.60/167,236.30 = 69,374.89/x
  3. Step 3: Cross multiply
    111,459.60x = 167,236.30 × 69,374.89
  4. Step 4: Simplify right side
    111,459.60x = 11,601,999,437.93
  5. Step 5: Solve for x
    x = 11,601,999,437.93/111,459.60
  6. Step 6: Final answer
    x = 104,091.52

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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.