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Finding the Fourth Proportional to 236,872.60, 355,292.70 and 76,946.20

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Solution

The fourth proportional to 236,872.60, 355,292.70 and 76,946.20 is: 115,414.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,872.60 : 355,292.70 = 76,946.20 : x
  2. Step 2: Convert to fraction form
    236,872.60/355,292.70 = 76,946.20/x
  3. Step 3: Cross multiply
    236,872.60x = 355,292.70 × 76,946.20
  4. Step 4: Simplify right side
    236,872.60x = 27,338,423,152.74
  5. Step 5: Solve for x
    x = 27,338,423,152.74/236,872.60
  6. Step 6: Final answer
    x = 115,414.04

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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.