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Finding the Fourth Proportional to 275,094.38, 412,700.96 and 85,551.06

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Solution

The fourth proportional to 275,094.38, 412,700.96 and 85,551.06 is: 128,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,094.38 : 412,700.96 = 85,551.06 : x
  2. Step 2: Convert to fraction form
    275,094.38/412,700.96 = 85,551.06/x
  3. Step 3: Cross multiply
    275,094.38x = 412,700.96 × 85,551.06
  4. Step 4: Simplify right side
    275,094.38x = 35,307,004,591.02
  5. Step 5: Solve for x
    x = 35,307,004,591.02/275,094.38
  6. Step 6: Final answer
    x = 128,345.06

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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.