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Finding the Fourth Proportional to 228,026.80, 342,040.20 and 61,814.80

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Solution

The fourth proportional to 228,026.80, 342,040.20 and 61,814.80 is: 92,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,026.80 : 342,040.20 = 61,814.80 : x
  2. Step 2: Convert to fraction form
    228,026.80/342,040.20 = 61,814.80/x
  3. Step 3: Cross multiply
    228,026.80x = 342,040.20 × 61,814.80
  4. Step 4: Simplify right side
    228,026.80x = 21,143,146,554.96
  5. Step 5: Solve for x
    x = 21,143,146,554.96/228,026.80
  6. Step 6: Final answer
    x = 92,722.20

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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.