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Finding the Fourth Proportional to 110,739.20, 166,108.80 and 92,368.40

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Solution

The fourth proportional to 110,739.20, 166,108.80 and 92,368.40 is: 138,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,739.20 : 166,108.80 = 92,368.40 : x
  2. Step 2: Convert to fraction form
    110,739.20/166,108.80 = 92,368.40/x
  3. Step 3: Cross multiply
    110,739.20x = 166,108.80 × 92,368.40
  4. Step 4: Simplify right side
    110,739.20x = 15,343,204,081.92
  5. Step 5: Solve for x
    x = 15,343,204,081.92/110,739.20
  6. Step 6: Final answer
    x = 138,552.60

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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.