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Finding the Fourth Proportional to 147,906.60, 221,859.90 and 42,736.20

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Solution

The fourth proportional to 147,906.60, 221,859.90 and 42,736.20 is: 64,104.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,906.60 : 221,859.90 = 42,736.20 : x
  2. Step 2: Convert to fraction form
    147,906.60/221,859.90 = 42,736.20/x
  3. Step 3: Cross multiply
    147,906.60x = 221,859.90 × 42,736.20
  4. Step 4: Simplify right side
    147,906.60x = 9,481,449,058.38
  5. Step 5: Solve for x
    x = 9,481,449,058.38/147,906.60
  6. Step 6: Final answer
    x = 64,104.30

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1.5x scale

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.