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Finding the Fourth Proportional to 88,682.52, 122,402.82 and 50,978.64

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Solution

The fourth proportional to 88,682.52, 122,402.82 and 50,978.64 is: 70,362.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,682.52 : 122,402.82 = 50,978.64 : x
  2. Step 2: Convert to fraction form
    88,682.52/122,402.82 = 50,978.64/x
  3. Step 3: Cross multiply
    88,682.52x = 122,402.82 × 50,978.64
  4. Step 4: Simplify right side
    88,682.52x = 6,239,929,295.76
  5. Step 5: Solve for x
    x = 6,239,929,295.76/88,682.52
  6. Step 6: Final answer
    x = 70,362.56

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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.