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Finding the Fourth Proportional to 92,661.36, 127,872.88 and 50,219.88

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Solution

The fourth proportional to 92,661.36, 127,872.88 and 50,219.88 is: 69,303.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,661.36 : 127,872.88 = 50,219.88 : x
  2. Step 2: Convert to fraction form
    92,661.36/127,872.88 = 50,219.88/x
  3. Step 3: Cross multiply
    92,661.36x = 127,872.88 × 50,219.88
  4. Step 4: Simplify right side
    92,661.36x = 6,421,760,688.85
  5. Step 5: Solve for x
    x = 6,421,760,688.85/92,661.36
  6. Step 6: Final answer
    x = 69,303.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.