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Finding the Fourth Proportional to 179,284.88, 268,802.82 and 79,390.64

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Solution

The fourth proportional to 179,284.88, 268,802.82 and 79,390.64 is: 119,030.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,284.88 : 268,802.82 = 79,390.64 : x
  2. Step 2: Convert to fraction form
    179,284.88/268,802.82 = 79,390.64/x
  3. Step 3: Cross multiply
    179,284.88x = 268,802.82 × 79,390.64
  4. Step 4: Simplify right side
    179,284.88x = 21,340,427,913.60
  5. Step 5: Solve for x
    x = 21,340,427,913.60/179,284.88
  6. Step 6: Final answer
    x = 119,030.83

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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.