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Finding the Fourth Proportional to 240,748.88, 361,122.42 and 72,268.48

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Solution

The fourth proportional to 240,748.88, 361,122.42 and 72,268.48 is: 108,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,748.88 : 361,122.42 = 72,268.48 : x
  2. Step 2: Convert to fraction form
    240,748.88/361,122.42 = 72,268.48/x
  3. Step 3: Cross multiply
    240,748.88x = 361,122.42 × 72,268.48
  4. Step 4: Simplify right side
    240,748.88x = 26,097,768,387.32
  5. Step 5: Solve for x
    x = 26,097,768,387.32/240,748.88
  6. Step 6: Final answer
    x = 108,402.45

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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.