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Finding the Fourth Proportional to 101,318.80, 151,986.84 and 26,448.88

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Solution

The fourth proportional to 101,318.80, 151,986.84 and 26,448.88 is: 39,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,318.80 : 151,986.84 = 26,448.88 : x
  2. Step 2: Convert to fraction form
    101,318.80/151,986.84 = 26,448.88/x
  3. Step 3: Cross multiply
    101,318.80x = 151,986.84 × 26,448.88
  4. Step 4: Simplify right side
    101,318.80x = 4,019,881,692.74
  5. Step 5: Solve for x
    x = 4,019,881,692.74/101,318.80
  6. Step 6: Final answer
    x = 39,675.58

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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.