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Finding the Fourth Proportional to 236,352.78, 326,171.25 and 128,926.62

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Solution

The fourth proportional to 236,352.78, 326,171.25 and 128,926.62 is: 177,921.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,352.78 : 326,171.25 = 128,926.62 : x
  2. Step 2: Convert to fraction form
    236,352.78/326,171.25 = 128,926.62/x
  3. Step 3: Cross multiply
    236,352.78x = 326,171.25 × 128,926.62
  4. Step 4: Simplify right side
    236,352.78x = 42,052,156,803.68
  5. Step 5: Solve for x
    x = 42,052,156,803.68/236,352.78
  6. Step 6: Final answer
    x = 177,921.14

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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.