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Finding the Fourth Proportional to 236,247, 326,020.08 and 128,816.77

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Solution

The fourth proportional to 236,247, 326,020.08 and 128,816.77 is: 177,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,247 : 326,020.08 = 128,816.77 : x
  2. Step 2: Convert to fraction form
    236,247/326,020.08 = 128,816.77/x
  3. Step 3: Cross multiply
    236,247x = 326,020.08 × 128,816.77
  4. Step 4: Simplify right side
    236,247x = 41,996,853,660.74
  5. Step 5: Solve for x
    x = 41,996,853,660.74/236,247
  6. Step 6: Final answer
    x = 177,766.72

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1.5x scale

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.