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Finding the Fourth Proportional to 236,800.60, 355,184.70 and 76,874.20

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Solution

The fourth proportional to 236,800.60, 355,184.70 and 76,874.20 is: 115,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,800.60 : 355,184.70 = 76,874.20 : x
  2. Step 2: Convert to fraction form
    236,800.60/355,184.70 = 76,874.20/x
  3. Step 3: Cross multiply
    236,800.60x = 355,184.70 × 76,874.20
  4. Step 4: Simplify right side
    236,800.60x = 27,304,539,664.74
  5. Step 5: Solve for x
    x = 27,304,539,664.74/236,800.60
  6. Step 6: Final answer
    x = 115,306.04

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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.