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Finding the Fourth Proportional to 268,588.69, 402,928.94 and 110,730.85

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Solution

The fourth proportional to 268,588.69, 402,928.94 and 110,730.85 is: 166,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,588.69 : 402,928.94 = 110,730.85 : x
  2. Step 2: Convert to fraction form
    268,588.69/402,928.94 = 110,730.85/x
  3. Step 3: Cross multiply
    268,588.69x = 402,928.94 × 110,730.85
  4. Step 4: Simplify right side
    268,588.69x = 44,616,663,462.14
  5. Step 5: Solve for x
    x = 44,616,663,462.14/268,588.69
  6. Step 6: Final answer
    x = 166,115.20

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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.