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Finding the Fourth Proportional to 101,066.80, 151,697.40 and 51,203.20

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Solution

The fourth proportional to 101,066.80, 151,697.40 and 51,203.20 is: 76,854.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,066.80 : 151,697.40 = 51,203.20 : x
  2. Step 2: Convert to fraction form
    101,066.80/151,697.40 = 51,203.20/x
  3. Step 3: Cross multiply
    101,066.80x = 151,697.40 × 51,203.20
  4. Step 4: Simplify right side
    101,066.80x = 7,767,392,311.68
  5. Step 5: Solve for x
    x = 7,767,392,311.68/101,066.80
  6. Step 6: Final answer
    x = 76,854.04

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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.