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Finding the Fourth Proportional to 64,221.81, 88,622.01 and 35,144.28

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Solution

The fourth proportional to 64,221.81, 88,622.01 and 35,144.28 is: 48,496.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,221.81 : 88,622.01 = 35,144.28 : x
  2. Step 2: Convert to fraction form
    64,221.81/88,622.01 = 35,144.28/x
  3. Step 3: Cross multiply
    64,221.81x = 88,622.01 × 35,144.28
  4. Step 4: Simplify right side
    64,221.81x = 3,114,556,733.60
  5. Step 5: Solve for x
    x = 3,114,556,733.60/64,221.81
  6. Step 6: Final answer
    x = 48,496.87

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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.