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Finding the Fourth Proportional to 543,624.90, 815,433.30 and 164,544.90

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Solution

The fourth proportional to 543,624.90, 815,433.30 and 164,544.90 is: 246,816.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,624.90 : 815,433.30 = 164,544.90 : x
  2. Step 2: Convert to fraction form
    543,624.90/815,433.30 = 164,544.90/x
  3. Step 3: Cross multiply
    543,624.90x = 815,433.30 × 164,544.90
  4. Step 4: Simplify right side
    543,624.90x = 134,175,390,805.17
  5. Step 5: Solve for x
    x = 134,175,390,805.17/543,624.90
  6. Step 6: Final answer
    x = 246,816.12

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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.