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Finding the Fourth Proportional to 228,015.10, 342,022.65 and 61,803.10

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Solution

The fourth proportional to 228,015.10, 342,022.65 and 61,803.10 is: 92,704.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,015.10 : 342,022.65 = 61,803.10 : x
  2. Step 2: Convert to fraction form
    228,015.10/342,022.65 = 61,803.10/x
  3. Step 3: Cross multiply
    228,015.10x = 342,022.65 × 61,803.10
  4. Step 4: Simplify right side
    228,015.10x = 21,138,060,040.22
  5. Step 5: Solve for x
    x = 21,138,060,040.22/228,015.10
  6. Step 6: Final answer
    x = 92,704.65

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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.