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Finding the Fourth Proportional to 127,353.72, 190,858.25 and 48,424.89

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Solution

The fourth proportional to 127,353.72, 190,858.25 and 48,424.89 is: 72,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,353.72 : 190,858.25 = 48,424.89 : x
  2. Step 2: Convert to fraction form
    127,353.72/190,858.25 = 48,424.89/x
  3. Step 3: Cross multiply
    127,353.72x = 190,858.25 × 48,424.89
  4. Step 4: Simplify right side
    127,353.72x = 9,242,289,882.90
  5. Step 5: Solve for x
    x = 9,242,289,882.90/127,353.72
  6. Step 6: Final answer
    x = 72,571.81

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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.