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Finding the Fourth Proportional to 88,556.90, 122,221.25 and 52,747.50

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Solution

The fourth proportional to 88,556.90, 122,221.25 and 52,747.50 is: 72,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,556.90 : 122,221.25 = 52,747.50 : x
  2. Step 2: Convert to fraction form
    88,556.90/122,221.25 = 52,747.50/x
  3. Step 3: Cross multiply
    88,556.90x = 122,221.25 × 52,747.50
  4. Step 4: Simplify right side
    88,556.90x = 6,446,866,073.48
  5. Step 5: Solve for x
    x = 6,446,866,073.48/88,556.90
  6. Step 6: Final answer
    x = 72,799.14

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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.