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Finding the Fourth Proportional to 236,469.60, 326,334.98 and 129,046.57

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Solution

The fourth proportional to 236,469.60, 326,334.98 and 129,046.57 is: 178,088.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,469.60 : 326,334.98 = 129,046.57 : x
  2. Step 2: Convert to fraction form
    236,469.60/326,334.98 = 129,046.57/x
  3. Step 3: Cross multiply
    236,469.60x = 326,334.98 × 129,046.57
  4. Step 4: Simplify right side
    236,469.60x = 42,112,409,346.80
  5. Step 5: Solve for x
    x = 42,112,409,346.80/236,469.60
  6. Step 6: Final answer
    x = 178,088.05

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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.