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Finding the Fourth Proportional to 333,903.10, 500,885.60 and 120,724.33

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Solution

The fourth proportional to 333,903.10, 500,885.60 and 120,724.33 is: 181,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,903.10 : 500,885.60 = 120,724.33 : x
  2. Step 2: Convert to fraction form
    333,903.10/500,885.60 = 120,724.33/x
  3. Step 3: Cross multiply
    333,903.10x = 500,885.60 × 120,724.33
  4. Step 4: Simplify right side
    333,903.10x = 60,469,078,466.65
  5. Step 5: Solve for x
    x = 60,469,078,466.65/333,903.10
  6. Step 6: Final answer
    x = 181,097.69

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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.