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Finding the Fourth Proportional to 322,140.17, 482,996.97 and 153,686.49

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Solution

The fourth proportional to 322,140.17, 482,996.97 and 153,686.49 is: 230,427.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,140.17 : 482,996.97 = 153,686.49 : x
  2. Step 2: Convert to fraction form
    322,140.17/482,996.97 = 153,686.49/x
  3. Step 3: Cross multiply
    322,140.17x = 482,996.97 × 153,686.49
  4. Step 4: Simplify right side
    322,140.17x = 74,230,108,231.50
  5. Step 5: Solve for x
    x = 74,230,108,231.50/322,140.17
  6. Step 6: Final answer
    x = 230,427.98

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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.