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Finding the Fourth Proportional to 147,058, 220,236 and 84,597.28

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Solution

The fourth proportional to 147,058, 220,236 and 84,597.28 is: 126,694.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,058 : 220,236 = 84,597.28 : x
  2. Step 2: Convert to fraction form
    147,058/220,236 = 84,597.28/x
  3. Step 3: Cross multiply
    147,058x = 220,236 × 84,597.28
  4. Step 4: Simplify right side
    147,058x = 18,631,366,558.08
  5. Step 5: Solve for x
    x = 18,631,366,558.08/147,058
  6. Step 6: Final answer
    x = 126,694.00

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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.