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Finding the Fourth Proportional to 93,679.84, 140,519.94 and 38,275.84

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Solution

The fourth proportional to 93,679.84, 140,519.94 and 38,275.84 is: 57,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,679.84 : 140,519.94 = 38,275.84 : x
  2. Step 2: Convert to fraction form
    93,679.84/140,519.94 = 38,275.84/x
  3. Step 3: Cross multiply
    93,679.84x = 140,519.94 × 38,275.84
  4. Step 4: Simplify right side
    93,679.84x = 5,378,518,740.25
  5. Step 5: Solve for x
    x = 5,378,518,740.25/93,679.84
  6. Step 6: Final answer
    x = 57,413.83

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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.