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Finding the Fourth Proportional to 268,710.92, 370,781.94 and 161,258.12

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Solution

The fourth proportional to 268,710.92, 370,781.94 and 161,258.12 is: 222,512.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,710.92 : 370,781.94 = 161,258.12 : x
  2. Step 2: Convert to fraction form
    268,710.92/370,781.94 = 161,258.12/x
  3. Step 3: Cross multiply
    268,710.92x = 370,781.94 × 161,258.12
  4. Step 4: Simplify right side
    268,710.92x = 59,791,598,574.35
  5. Step 5: Solve for x
    x = 59,791,598,574.35/268,710.92
  6. Step 6: Final answer
    x = 222,512.72

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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.