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Finding the Fourth Proportional to 101,767.97, 152,620.86 and 70,379.75

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Solution

The fourth proportional to 101,767.97, 152,620.86 and 70,379.75 is: 105,548.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,767.97 : 152,620.86 = 70,379.75 : x
  2. Step 2: Convert to fraction form
    101,767.97/152,620.86 = 70,379.75/x
  3. Step 3: Cross multiply
    101,767.97x = 152,620.86 × 70,379.75
  4. Step 4: Simplify right side
    101,767.97x = 10,741,417,971.59
  5. Step 5: Solve for x
    x = 10,741,417,971.59/101,767.97
  6. Step 6: Final answer
    x = 105,548.12

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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.