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Finding the Fourth Proportional to 88,990.60, 122,801.70 and 48,696.36

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Solution

The fourth proportional to 88,990.60, 122,801.70 and 48,696.36 is: 67,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,990.60 : 122,801.70 = 48,696.36 : x
  2. Step 2: Convert to fraction form
    88,990.60/122,801.70 = 48,696.36/x
  3. Step 3: Cross multiply
    88,990.60x = 122,801.70 × 48,696.36
  4. Step 4: Simplify right side
    88,990.60x = 5,979,995,791.81
  5. Step 5: Solve for x
    x = 5,979,995,791.81/88,990.60
  6. Step 6: Final answer
    x = 67,198.06

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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.