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Finding the Fourth Proportional to 100,548.45, 150,822.51 and 25,668.59

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Solution

The fourth proportional to 100,548.45, 150,822.51 and 25,668.59 is: 38,502.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,548.45 : 150,822.51 = 25,668.59 : x
  2. Step 2: Convert to fraction form
    100,548.45/150,822.51 = 25,668.59/x
  3. Step 3: Cross multiply
    100,548.45x = 150,822.51 × 25,668.59
  4. Step 4: Simplify right side
    100,548.45x = 3,871,400,887.18
  5. Step 5: Solve for x
    x = 3,871,400,887.18/100,548.45
  6. Step 6: Final answer
    x = 38,502.84

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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.