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Finding the Fourth Proportional to 110,937.60, 166,420.80 and 54,806.40

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Solution

The fourth proportional to 110,937.60, 166,420.80 and 54,806.40 is: 82,216.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,937.60 : 166,420.80 = 54,806.40 : x
  2. Step 2: Convert to fraction form
    110,937.60/166,420.80 = 54,806.40/x
  3. Step 3: Cross multiply
    110,937.60x = 166,420.80 × 54,806.40
  4. Step 4: Simplify right side
    110,937.60x = 9,120,924,933.12
  5. Step 5: Solve for x
    x = 9,120,924,933.12/110,937.60
  6. Step 6: Final answer
    x = 82,216.71

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1.5x scale

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.