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Finding the Fourth Proportional to 228,799.76, 343,115.44 and 79,001.60

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Solution

The fourth proportional to 228,799.76, 343,115.44 and 79,001.60 is: 118,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,799.76 : 343,115.44 = 79,001.60 : x
  2. Step 2: Convert to fraction form
    228,799.76/343,115.44 = 79,001.60/x
  3. Step 3: Cross multiply
    228,799.76x = 343,115.44 × 79,001.60
  4. Step 4: Simplify right side
    228,799.76x = 27,106,668,744.70
  5. Step 5: Solve for x
    x = 27,106,668,744.70/228,799.76
  6. Step 6: Final answer
    x = 118,473.33

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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.