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Finding the Fourth Proportional to 228,027.80, 342,041.70 and 61,815.80

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Solution

The fourth proportional to 228,027.80, 342,041.70 and 61,815.80 is: 92,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,027.80 : 342,041.70 = 61,815.80 : x
  2. Step 2: Convert to fraction form
    228,027.80/342,041.70 = 61,815.80/x
  3. Step 3: Cross multiply
    228,027.80x = 342,041.70 × 61,815.80
  4. Step 4: Simplify right side
    228,027.80x = 21,143,581,318.86
  5. Step 5: Solve for x
    x = 21,143,581,318.86/228,027.80
  6. Step 6: Final answer
    x = 92,723.70

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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.