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Finding the Fourth Proportional to 105,925.73, 158,740.97 and 79,599.71

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Solution

The fourth proportional to 105,925.73, 158,740.97 and 79,599.71 is: 119,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,925.73 : 158,740.97 = 79,599.71 : x
  2. Step 2: Convert to fraction form
    105,925.73/158,740.97 = 79,599.71/x
  3. Step 3: Cross multiply
    105,925.73x = 158,740.97 × 79,599.71
  4. Step 4: Simplify right side
    105,925.73x = 12,635,735,175.97
  5. Step 5: Solve for x
    x = 12,635,735,175.97/105,925.73
  6. Step 6: Final answer
    x = 119,288.64

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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.