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Finding the Fourth Proportional to 468,406.36, 702,628.98 and 135,982.36

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Solution

The fourth proportional to 468,406.36, 702,628.98 and 135,982.36 is: 203,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,406.36 : 702,628.98 = 135,982.36 : x
  2. Step 2: Convert to fraction form
    468,406.36/702,628.98 = 135,982.36/x
  3. Step 3: Cross multiply
    468,406.36x = 702,628.98 × 135,982.36
  4. Step 4: Simplify right side
    468,406.36x = 95,545,146,904.79
  5. Step 5: Solve for x
    x = 95,545,146,904.79/468,406.36
  6. Step 6: Final answer
    x = 203,979.18

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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.