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Finding the Fourth Proportional to 101,209.74, 151,621.42 and 56,701.86

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Solution

The fourth proportional to 101,209.74, 151,621.42 and 56,701.86 is: 84,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,209.74 : 151,621.42 = 56,701.86 : x
  2. Step 2: Convert to fraction form
    101,209.74/151,621.42 = 56,701.86/x
  3. Step 3: Cross multiply
    101,209.74x = 151,621.42 × 56,701.86
  4. Step 4: Simplify right side
    101,209.74x = 8,597,216,529.84
  5. Step 5: Solve for x
    x = 8,597,216,529.84/101,209.74
  6. Step 6: Final answer
    x = 84,944.56

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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.