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Finding the Fourth Proportional to 228,009.28, 342,013.92 and 61,797.28

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Solution

The fourth proportional to 228,009.28, 342,013.92 and 61,797.28 is: 92,695.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,009.28 : 342,013.92 = 61,797.28 : x
  2. Step 2: Convert to fraction form
    228,009.28/342,013.92 = 61,797.28/x
  3. Step 3: Cross multiply
    228,009.28x = 342,013.92 × 61,797.28
  4. Step 4: Simplify right side
    228,009.28x = 21,135,529,978.14
  5. Step 5: Solve for x
    x = 21,135,529,978.14/228,009.28
  6. Step 6: Final answer
    x = 92,695.92

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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.