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Finding the Fourth Proportional to 303,479.91, 418,802.33 and 167,513.91

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Solution

The fourth proportional to 303,479.91, 418,802.33 and 167,513.91 is: 231,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,479.91 : 418,802.33 = 167,513.91 : x
  2. Step 2: Convert to fraction form
    303,479.91/418,802.33 = 167,513.91/x
  3. Step 3: Cross multiply
    303,479.91x = 418,802.33 × 167,513.91
  4. Step 4: Simplify right side
    303,479.91x = 70,155,214,977.84
  5. Step 5: Solve for x
    x = 70,155,214,977.84/303,479.91
  6. Step 6: Final answer
    x = 231,169.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.