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Finding the Fourth Proportional to 333,928.50, 500,921.91 and 84,610.50

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Solution

The fourth proportional to 333,928.50, 500,921.91 and 84,610.50 is: 126,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,928.50 : 500,921.91 = 84,610.50 : x
  2. Step 2: Convert to fraction form
    333,928.50/500,921.91 = 84,610.50/x
  3. Step 3: Cross multiply
    333,928.50x = 500,921.91 × 84,610.50
  4. Step 4: Simplify right side
    333,928.50x = 42,383,253,266.06
  5. Step 5: Solve for x
    x = 42,383,253,266.06/333,928.50
  6. Step 6: Final answer
    x = 126,923.14

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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.