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Finding the Fourth Proportional to 335,661.65, 503,502.57 and 82,942.12

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Solution

The fourth proportional to 335,661.65, 503,502.57 and 82,942.12 is: 124,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,661.65 : 503,502.57 = 82,942.12 : x
  2. Step 2: Convert to fraction form
    335,661.65/503,502.57 = 82,942.12/x
  3. Step 3: Cross multiply
    335,661.65x = 503,502.57 × 82,942.12
  4. Step 4: Simplify right side
    335,661.65x = 41,761,570,581.25
  5. Step 5: Solve for x
    x = 41,761,570,581.25/335,661.65
  6. Step 6: Final answer
    x = 124,415.67

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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.