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Finding the Fourth Proportional to 64,266.40, 96,334.80 and 29,231.20

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Solution

The fourth proportional to 64,266.40, 96,334.80 and 29,231.20 is: 43,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266.40 : 96,334.80 = 29,231.20 : x
  2. Step 2: Convert to fraction form
    64,266.40/96,334.80 = 29,231.20/x
  3. Step 3: Cross multiply
    64,266.40x = 96,334.80 × 29,231.20
  4. Step 4: Simplify right side
    64,266.40x = 2,815,981,805.76
  5. Step 5: Solve for x
    x = 2,815,981,805.76/64,266.40
  6. Step 6: Final answer
    x = 43,817.33

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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.