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Finding the Fourth Proportional to 322,476.70, 483,719.10 and 97,839.40

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Solution

The fourth proportional to 322,476.70, 483,719.10 and 97,839.40 is: 146,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,476.70 : 483,719.10 = 97,839.40 : x
  2. Step 2: Convert to fraction form
    322,476.70/483,719.10 = 97,839.40/x
  3. Step 3: Cross multiply
    322,476.70x = 483,719.10 × 97,839.40
  4. Step 4: Simplify right side
    322,476.70x = 47,326,786,512.54
  5. Step 5: Solve for x
    x = 47,326,786,512.54/322,476.70
  6. Step 6: Final answer
    x = 146,760.33

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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.