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Finding the Fourth Proportional to 97,221, 134,223.30 and 63,745.32

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Solution

The fourth proportional to 97,221, 134,223.30 and 63,745.32 is: 88,006.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,221 : 134,223.30 = 63,745.32 : x
  2. Step 2: Convert to fraction form
    97,221/134,223.30 = 63,745.32/x
  3. Step 3: Cross multiply
    97,221x = 134,223.30 × 63,745.32
  4. Step 4: Simplify right side
    97,221x = 8,556,107,209.96
  5. Step 5: Solve for x
    x = 8,556,107,209.96/97,221
  6. Step 6: Final answer
    x = 88,006.78

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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.