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Finding the Fourth Proportional to 236,941.74, 355,474.92 and 85,154.15

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Solution

The fourth proportional to 236,941.74, 355,474.92 and 85,154.15 is: 127,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,941.74 : 355,474.92 = 85,154.15 : x
  2. Step 2: Convert to fraction form
    236,941.74/355,474.92 = 85,154.15/x
  3. Step 3: Cross multiply
    236,941.74x = 355,474.92 × 85,154.15
  4. Step 4: Simplify right side
    236,941.74x = 30,270,162,881.54
  5. Step 5: Solve for x
    x = 30,270,162,881.54/236,941.74
  6. Step 6: Final answer
    x = 127,753.61

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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.