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Finding the Fourth Proportional to 111,101.60, 166,636.20 and 32,207.60

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Solution

The fourth proportional to 111,101.60, 166,636.20 and 32,207.60 is: 48,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,101.60 : 166,636.20 = 32,207.60 : x
  2. Step 2: Convert to fraction form
    111,101.60/166,636.20 = 32,207.60/x
  3. Step 3: Cross multiply
    111,101.60x = 166,636.20 × 32,207.60
  4. Step 4: Simplify right side
    111,101.60x = 5,366,952,075.12
  5. Step 5: Solve for x
    x = 5,366,952,075.12/111,101.60
  6. Step 6: Final answer
    x = 48,306.70

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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.