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Finding the Fourth Proportional to 266,781.75, 368,169.04 and 152,078.46

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Solution

The fourth proportional to 266,781.75, 368,169.04 and 152,078.46 is: 209,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,781.75 : 368,169.04 = 152,078.46 : x
  2. Step 2: Convert to fraction form
    266,781.75/368,169.04 = 152,078.46/x
  3. Step 3: Cross multiply
    266,781.75x = 368,169.04 × 152,078.46
  4. Step 4: Simplify right side
    266,781.75x = 55,990,580,622.88
  5. Step 5: Solve for x
    x = 55,990,580,622.88/266,781.75
  6. Step 6: Final answer
    x = 209,874.10

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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.