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Finding the Fourth Proportional to 134,927.20, 202,390.80 and 41,420.80

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Solution

The fourth proportional to 134,927.20, 202,390.80 and 41,420.80 is: 62,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,927.20 : 202,390.80 = 41,420.80 : x
  2. Step 2: Convert to fraction form
    134,927.20/202,390.80 = 41,420.80/x
  3. Step 3: Cross multiply
    134,927.20x = 202,390.80 × 41,420.80
  4. Step 4: Simplify right side
    134,927.20x = 8,383,188,848.64
  5. Step 5: Solve for x
    x = 8,383,188,848.64/134,927.20
  6. Step 6: Final answer
    x = 62,131.20

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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.