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Finding the Fourth Proportional to 207,548.30, 311,322.45 and 181,304.30

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Solution

The fourth proportional to 207,548.30, 311,322.45 and 181,304.30 is: 271,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,548.30 : 311,322.45 = 181,304.30 : x
  2. Step 2: Convert to fraction form
    207,548.30/311,322.45 = 181,304.30/x
  3. Step 3: Cross multiply
    207,548.30x = 311,322.45 × 181,304.30
  4. Step 4: Simplify right side
    207,548.30x = 56,444,098,871.54
  5. Step 5: Solve for x
    x = 56,444,098,871.54/207,548.30
  6. Step 6: Final answer
    x = 271,956.45

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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.