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Finding the Fourth Proportional to 88,383.94, 121,968.57 and 48,639.94

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Solution

The fourth proportional to 88,383.94, 121,968.57 and 48,639.94 is: 67,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,383.94 : 121,968.57 = 48,639.94 : x
  2. Step 2: Convert to fraction form
    88,383.94/121,968.57 = 48,639.94/x
  3. Step 3: Cross multiply
    88,383.94x = 121,968.57 × 48,639.94
  4. Step 4: Simplify right side
    88,383.94x = 5,932,543,926.69
  5. Step 5: Solve for x
    x = 5,932,543,926.69/88,383.94
  6. Step 6: Final answer
    x = 67,122.42

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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.