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Finding the Fourth Proportional to 88,357.26, 122,006.59 and 81,946.52

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Solution

The fourth proportional to 88,357.26, 122,006.59 and 81,946.52 is: 113,154.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,357.26 : 122,006.59 = 81,946.52 : x
  2. Step 2: Convert to fraction form
    88,357.26/122,006.59 = 81,946.52/x
  3. Step 3: Cross multiply
    88,357.26x = 122,006.59 × 81,946.52
  4. Step 4: Simplify right side
    88,357.26x = 9,998,014,857.53
  5. Step 5: Solve for x
    x = 9,998,014,857.53/88,357.26
  6. Step 6: Final answer
    x = 113,154.42

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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.