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Finding the Fourth Proportional to 57,095.52, 85,516.56 and 43,850.40

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Solution

The fourth proportional to 57,095.52, 85,516.56 and 43,850.40 is: 65,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,095.52 : 85,516.56 = 43,850.40 : x
  2. Step 2: Convert to fraction form
    57,095.52/85,516.56 = 43,850.40/x
  3. Step 3: Cross multiply
    57,095.52x = 85,516.56 × 43,850.40
  4. Step 4: Simplify right side
    57,095.52x = 3,749,935,362.62
  5. Step 5: Solve for x
    x = 3,749,935,362.62/57,095.52
  6. Step 6: Final answer
    x = 65,678.28

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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.