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Finding the Fourth Proportional to 185,406.88, 255,862.05 and 100,523.98

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Solution

The fourth proportional to 185,406.88, 255,862.05 and 100,523.98 is: 138,723.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,406.88 : 255,862.05 = 100,523.98 : x
  2. Step 2: Convert to fraction form
    185,406.88/255,862.05 = 100,523.98/x
  3. Step 3: Cross multiply
    185,406.88x = 255,862.05 × 100,523.98
  4. Step 4: Simplify right side
    185,406.88x = 25,720,271,596.96
  5. Step 5: Solve for x
    x = 25,720,271,596.96/185,406.88
  6. Step 6: Final answer
    x = 138,723.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.