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Finding the Fourth Proportional to 268,673.20, 403,024.20 and 81,670.48

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Solution

The fourth proportional to 268,673.20, 403,024.20 and 81,670.48 is: 122,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,673.20 : 403,024.20 = 81,670.48 : x
  2. Step 2: Convert to fraction form
    268,673.20/403,024.20 = 81,670.48/x
  3. Step 3: Cross multiply
    268,673.20x = 403,024.20 × 81,670.48
  4. Step 4: Simplify right side
    268,673.20x = 32,915,179,865.62
  5. Step 5: Solve for x
    x = 32,915,179,865.62/268,673.20
  6. Step 6: Final answer
    x = 122,510.10

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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.