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Finding the Fourth Proportional to 215,854.52, 323,756.87 and 58,070.57

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Solution

The fourth proportional to 215,854.52, 323,756.87 and 58,070.57 is: 87,099.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,854.52 : 323,756.87 = 58,070.57 : x
  2. Step 2: Convert to fraction form
    215,854.52/323,756.87 = 58,070.57/x
  3. Step 3: Cross multiply
    215,854.52x = 323,756.87 × 58,070.57
  4. Step 4: Simplify right side
    215,854.52x = 18,800,745,982.32
  5. Step 5: Solve for x
    x = 18,800,745,982.32/215,854.52
  6. Step 6: Final answer
    x = 87,099.15

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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.