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Finding the Fourth Proportional to 100,060.20, 149,725.80 and 73,816.20

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Solution

The fourth proportional to 100,060.20, 149,725.80 and 73,816.20 is: 110,455.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,060.20 : 149,725.80 = 73,816.20 : x
  2. Step 2: Convert to fraction form
    100,060.20/149,725.80 = 73,816.20/x
  3. Step 3: Cross multiply
    100,060.20x = 149,725.80 × 73,816.20
  4. Step 4: Simplify right side
    100,060.20x = 11,052,189,597.96
  5. Step 5: Solve for x
    x = 11,052,189,597.96/100,060.20
  6. Step 6: Final answer
    x = 110,455.40

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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.