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Finding the Fourth Proportional to 75,458.56, 113,187.84 and 20,060.16

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Solution

The fourth proportional to 75,458.56, 113,187.84 and 20,060.16 is: 30,090.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,458.56 : 113,187.84 = 20,060.16 : x
  2. Step 2: Convert to fraction form
    75,458.56/113,187.84 = 20,060.16/x
  3. Step 3: Cross multiply
    75,458.56x = 113,187.84 × 20,060.16
  4. Step 4: Simplify right side
    75,458.56x = 2,270,566,180.45
  5. Step 5: Solve for x
    x = 2,270,566,180.45/75,458.56
  6. Step 6: Final answer
    x = 30,090.24

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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.