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Finding the Fourth Proportional to 110,929.20, 166,393.80 and 75,937.20

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Solution

The fourth proportional to 110,929.20, 166,393.80 and 75,937.20 is: 113,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,929.20 : 166,393.80 = 75,937.20 : x
  2. Step 2: Convert to fraction form
    110,929.20/166,393.80 = 75,937.20/x
  3. Step 3: Cross multiply
    110,929.20x = 166,393.80 × 75,937.20
  4. Step 4: Simplify right side
    110,929.20x = 12,635,479,269.36
  5. Step 5: Solve for x
    x = 12,635,479,269.36/110,929.20
  6. Step 6: Final answer
    x = 113,905.80

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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.