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Finding the Fourth Proportional to 225,112.67, 337,668.82 and 90,237.68

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Solution

The fourth proportional to 225,112.67, 337,668.82 and 90,237.68 is: 135,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,112.67 : 337,668.82 = 90,237.68 : x
  2. Step 2: Convert to fraction form
    225,112.67/337,668.82 = 90,237.68/x
  3. Step 3: Cross multiply
    225,112.67x = 337,668.82 × 90,237.68
  4. Step 4: Simplify right side
    225,112.67x = 30,470,450,925.14
  5. Step 5: Solve for x
    x = 30,470,450,925.14/225,112.67
  6. Step 6: Final answer
    x = 135,356.45

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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.