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Finding the Fourth Proportional to 111,165.61, 166,779.45 and 44,652.45

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Solution

The fourth proportional to 111,165.61, 166,779.45 and 44,652.45 is: 66,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,165.61 : 166,779.45 = 44,652.45 : x
  2. Step 2: Convert to fraction form
    111,165.61/166,779.45 = 44,652.45/x
  3. Step 3: Cross multiply
    111,165.61x = 166,779.45 × 44,652.45
  4. Step 4: Simplify right side
    111,165.61x = 7,447,111,052.15
  5. Step 5: Solve for x
    x = 7,447,111,052.15/111,165.61
  6. Step 6: Final answer
    x = 66,991.14

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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.