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Finding the Fourth Proportional to 268,707.92, 370,777.80 and 161,255.12

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Solution

The fourth proportional to 268,707.92, 370,777.80 and 161,255.12 is: 222,508.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,707.92 : 370,777.80 = 161,255.12 : x
  2. Step 2: Convert to fraction form
    268,707.92/370,777.80 = 161,255.12/x
  3. Step 3: Cross multiply
    268,707.92x = 370,777.80 × 161,255.12
  4. Step 4: Simplify right side
    268,707.92x = 59,789,818,632.34
  5. Step 5: Solve for x
    x = 59,789,818,632.34/268,707.92
  6. Step 6: Final answer
    x = 222,508.58

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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.