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Finding the Fourth Proportional to 188,468.40, 283,163.40 and 141,812.40

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Solution

The fourth proportional to 188,468.40, 283,163.40 and 141,812.40 is: 213,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,468.40 : 283,163.40 = 141,812.40 : x
  2. Step 2: Convert to fraction form
    188,468.40/283,163.40 = 141,812.40/x
  3. Step 3: Cross multiply
    188,468.40x = 283,163.40 × 141,812.40
  4. Step 4: Simplify right side
    188,468.40x = 40,156,081,346.16
  5. Step 5: Solve for x
    x = 40,156,081,346.16/188,468.40
  6. Step 6: Final answer
    x = 213,065.33

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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.