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Finding the Fourth Proportional to 111,020.68, 166,531.02 and 64,248.04

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Solution

The fourth proportional to 111,020.68, 166,531.02 and 64,248.04 is: 96,372.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,020.68 : 166,531.02 = 64,248.04 : x
  2. Step 2: Convert to fraction form
    111,020.68/166,531.02 = 64,248.04/x
  3. Step 3: Cross multiply
    111,020.68x = 166,531.02 × 64,248.04
  4. Step 4: Simplify right side
    111,020.68x = 10,699,291,634.20
  5. Step 5: Solve for x
    x = 10,699,291,634.20/111,020.68
  6. Step 6: Final answer
    x = 96,372.06

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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.