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Finding the Fourth Proportional to 468,762.50, 703,262.82 and 136,338.50

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Solution

The fourth proportional to 468,762.50, 703,262.82 and 136,338.50 is: 204,542.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,762.50 : 703,262.82 = 136,338.50 : x
  2. Step 2: Convert to fraction form
    468,762.50/703,262.82 = 136,338.50/x
  3. Step 3: Cross multiply
    468,762.50x = 703,262.82 × 136,338.50
  4. Step 4: Simplify right side
    468,762.50x = 95,881,797,984.57
  5. Step 5: Solve for x
    x = 95,881,797,984.57/468,762.50
  6. Step 6: Final answer
    x = 204,542.38

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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.