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Finding the Fourth Proportional to 181,758.08, 272,504.04 and 85,662.56

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Solution

The fourth proportional to 181,758.08, 272,504.04 and 85,662.56 is: 128,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,758.08 : 272,504.04 = 85,662.56 : x
  2. Step 2: Convert to fraction form
    181,758.08/272,504.04 = 85,662.56/x
  3. Step 3: Cross multiply
    181,758.08x = 272,504.04 × 85,662.56
  4. Step 4: Simplify right side
    181,758.08x = 23,343,393,676.74
  5. Step 5: Solve for x
    x = 23,343,393,676.74/181,758.08
  6. Step 6: Final answer
    x = 128,431.12

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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.