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Finding the Fourth Proportional to 111,017.70, 166,526.55 and 32,139.90

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Solution

The fourth proportional to 111,017.70, 166,526.55 and 32,139.90 is: 48,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,017.70 : 166,526.55 = 32,139.90 : x
  2. Step 2: Convert to fraction form
    111,017.70/166,526.55 = 32,139.90/x
  3. Step 3: Cross multiply
    111,017.70x = 166,526.55 × 32,139.90
  4. Step 4: Simplify right side
    111,017.70x = 5,352,146,664.35
  5. Step 5: Solve for x
    x = 5,352,146,664.35/111,017.70
  6. Step 6: Final answer
    x = 48,209.85

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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.