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Finding the Fourth Proportional to 88,231.70, 132,347.55 and 53,153.30

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Solution

The fourth proportional to 88,231.70, 132,347.55 and 53,153.30 is: 79,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,231.70 : 132,347.55 = 53,153.30 : x
  2. Step 2: Convert to fraction form
    88,231.70/132,347.55 = 53,153.30/x
  3. Step 3: Cross multiply
    88,231.70x = 132,347.55 × 53,153.30
  4. Step 4: Simplify right side
    88,231.70x = 7,034,709,029.42
  5. Step 5: Solve for x
    x = 7,034,709,029.42/88,231.70
  6. Step 6: Final answer
    x = 79,729.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.