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Finding the Fourth Proportional to 98,052.98, 135,238.94 and 67,888.78

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Solution

The fourth proportional to 98,052.98, 135,238.94 and 67,888.78 is: 93,635.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,052.98 : 135,238.94 = 67,888.78 : x
  2. Step 2: Convert to fraction form
    98,052.98/135,238.94 = 67,888.78/x
  3. Step 3: Cross multiply
    98,052.98x = 135,238.94 × 67,888.78
  4. Step 4: Simplify right side
    98,052.98x = 9,181,206,645.09
  5. Step 5: Solve for x
    x = 9,181,206,645.09/98,052.98
  6. Step 6: Final answer
    x = 93,635.16

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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.