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Finding the Fourth Proportional to 228,112.10, 342,168.15 and 61,900.10

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Solution

The fourth proportional to 228,112.10, 342,168.15 and 61,900.10 is: 92,850.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,112.10 : 342,168.15 = 61,900.10 : x
  2. Step 2: Convert to fraction form
    228,112.10/342,168.15 = 61,900.10/x
  3. Step 3: Cross multiply
    228,112.10x = 342,168.15 × 61,900.10
  4. Step 4: Simplify right side
    228,112.10x = 21,180,242,701.82
  5. Step 5: Solve for x
    x = 21,180,242,701.82/228,112.10
  6. Step 6: Final answer
    x = 92,850.15

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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.