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Finding the Fourth Proportional to 100,548.39, 150,822.55 and 25,668.52

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Solution

The fourth proportional to 100,548.39, 150,822.55 and 25,668.52 is: 38,502.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,548.39 : 150,822.55 = 25,668.52 : x
  2. Step 2: Convert to fraction form
    100,548.39/150,822.55 = 25,668.52/x
  3. Step 3: Cross multiply
    100,548.39x = 150,822.55 × 25,668.52
  4. Step 4: Simplify right side
    100,548.39x = 3,871,391,296.16
  5. Step 5: Solve for x
    x = 3,871,391,296.16/100,548.39
  6. Step 6: Final answer
    x = 38,502.77

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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.