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Finding the Fourth Proportional to 70,027.99, 104,978.71 and 25,623.79

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Solution

The fourth proportional to 70,027.99, 104,978.71 and 25,623.79 is: 38,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,027.99 : 104,978.71 = 25,623.79 : x
  2. Step 2: Convert to fraction form
    70,027.99/104,978.71 = 25,623.79/x
  3. Step 3: Cross multiply
    70,027.99x = 104,978.71 × 25,623.79
  4. Step 4: Simplify right side
    70,027.99x = 2,689,952,189.09
  5. Step 5: Solve for x
    x = 2,689,952,189.09/70,027.99
  6. Step 6: Final answer
    x = 38,412.53

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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.