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Finding the Fourth Proportional to 93,679.72, 140,519.82 and 38,275.72

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Solution

The fourth proportional to 93,679.72, 140,519.82 and 38,275.72 is: 57,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,679.72 : 140,519.82 = 38,275.72 : x
  2. Step 2: Convert to fraction form
    93,679.72/140,519.82 = 38,275.72/x
  3. Step 3: Cross multiply
    93,679.72x = 140,519.82 × 38,275.72
  4. Step 4: Simplify right side
    93,679.72x = 5,378,497,284.77
  5. Step 5: Solve for x
    x = 5,378,497,284.77/93,679.72
  6. Step 6: Final answer
    x = 57,413.68

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1.5x scale

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.