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Finding the Fourth Proportional to 543,155.22, 814,459.46 and 188,073.90

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Solution

The fourth proportional to 543,155.22, 814,459.46 and 188,073.90 is: 282,016.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,155.22 : 814,459.46 = 188,073.90 : x
  2. Step 2: Convert to fraction form
    543,155.22/814,459.46 = 188,073.90/x
  3. Step 3: Cross multiply
    543,155.22x = 814,459.46 × 188,073.90
  4. Step 4: Simplify right side
    543,155.22x = 153,178,566,093.73
  5. Step 5: Solve for x
    x = 153,178,566,093.73/543,155.22
  6. Step 6: Final answer
    x = 282,016.19

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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.