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Finding the Fourth Proportional to 88,681.77, 122,379.80 and 48,396.22

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Solution

The fourth proportional to 88,681.77, 122,379.80 and 48,396.22 is: 66,786.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,681.77 : 122,379.80 = 48,396.22 : x
  2. Step 2: Convert to fraction form
    88,681.77/122,379.80 = 48,396.22/x
  3. Step 3: Cross multiply
    88,681.77x = 122,379.80 × 48,396.22
  4. Step 4: Simplify right side
    88,681.77x = 5,922,719,176.43
  5. Step 5: Solve for x
    x = 5,922,719,176.43/88,681.77
  6. Step 6: Final answer
    x = 66,786.21

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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.