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Finding the Fourth Proportional to 101,364.88, 151,899.69 and 48,712.85

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Solution

The fourth proportional to 101,364.88, 151,899.69 and 48,712.85 is: 72,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,364.88 : 151,899.69 = 48,712.85 : x
  2. Step 2: Convert to fraction form
    101,364.88/151,899.69 = 48,712.85/x
  3. Step 3: Cross multiply
    101,364.88x = 151,899.69 × 48,712.85
  4. Step 4: Simplify right side
    101,364.88x = 7,399,466,570.45
  5. Step 5: Solve for x
    x = 7,399,466,570.45/101,364.88
  6. Step 6: Final answer
    x = 72,998.33

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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.