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Finding the Fourth Proportional to 110,077.12, 151,977.18 and 75,679.12

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Solution

The fourth proportional to 110,077.12, 151,977.18 and 75,679.12 is: 104,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,077.12 : 151,977.18 = 75,679.12 : x
  2. Step 2: Convert to fraction form
    110,077.12/151,977.18 = 75,679.12/x
  3. Step 3: Cross multiply
    110,077.12x = 151,977.18 × 75,679.12
  4. Step 4: Simplify right side
    110,077.12x = 11,501,499,242.48
  5. Step 5: Solve for x
    x = 11,501,499,242.48/110,077.12
  6. Step 6: Final answer
    x = 104,485.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.