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Finding the Fourth Proportional to 640,716.04, 961,008.54 and 167,340.04

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Solution

The fourth proportional to 640,716.04, 961,008.54 and 167,340.04 is: 250,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,716.04 : 961,008.54 = 167,340.04 : x
  2. Step 2: Convert to fraction form
    640,716.04/961,008.54 = 167,340.04/x
  3. Step 3: Cross multiply
    640,716.04x = 961,008.54 × 167,340.04
  4. Step 4: Simplify right side
    640,716.04x = 160,815,207,523.94
  5. Step 5: Solve for x
    x = 160,815,207,523.94/640,716.04
  6. Step 6: Final answer
    x = 250,992.95

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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.