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Finding the Fourth Proportional to 268,719.56, 370,832.56 and 161,290.07

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Solution

The fourth proportional to 268,719.56, 370,832.56 and 161,290.07 is: 222,580.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,719.56 : 370,832.56 = 161,290.07 : x
  2. Step 2: Convert to fraction form
    268,719.56/370,832.56 = 161,290.07/x
  3. Step 3: Cross multiply
    268,719.56x = 370,832.56 × 161,290.07
  4. Step 4: Simplify right side
    268,719.56x = 59,811,609,560.68
  5. Step 5: Solve for x
    x = 59,811,609,560.68/268,719.56
  6. Step 6: Final answer
    x = 222,580.04

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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.