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Finding the Fourth Proportional to 104,298.88, 156,447.84 and 25,412.80

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Solution

The fourth proportional to 104,298.88, 156,447.84 and 25,412.80 is: 38,119.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,298.88 : 156,447.84 = 25,412.80 : x
  2. Step 2: Convert to fraction form
    104,298.88/156,447.84 = 25,412.80/x
  3. Step 3: Cross multiply
    104,298.88x = 156,447.84 × 25,412.80
  4. Step 4: Simplify right side
    104,298.88x = 3,975,777,668.35
  5. Step 5: Solve for x
    x = 3,975,777,668.35/104,298.88
  6. Step 6: Final answer
    x = 38,119.08

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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.