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Finding the Fourth Proportional to 352,212.71, 528,072.82 and 112,246.16

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Solution

The fourth proportional to 352,212.71, 528,072.82 and 112,246.16 is: 168,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,212.71 : 528,072.82 = 112,246.16 : x
  2. Step 2: Convert to fraction form
    352,212.71/528,072.82 = 112,246.16/x
  3. Step 3: Cross multiply
    352,212.71x = 528,072.82 × 112,246.16
  4. Step 4: Simplify right side
    352,212.71x = 59,274,143,324.39
  5. Step 5: Solve for x
    x = 59,274,143,324.39/352,212.71
  6. Step 6: Final answer
    x = 168,290.76

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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.