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Finding the Fourth Proportional to 45,541.52, 67,859.54 and 40,572.98

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Solution

The fourth proportional to 45,541.52, 67,859.54 and 40,572.98 is: 60,456.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,541.52 : 67,859.54 = 40,572.98 : x
  2. Step 2: Convert to fraction form
    45,541.52/67,859.54 = 40,572.98/x
  3. Step 3: Cross multiply
    45,541.52x = 67,859.54 × 40,572.98
  4. Step 4: Simplify right side
    45,541.52x = 2,753,263,521.36
  5. Step 5: Solve for x
    x = 2,753,263,521.36/45,541.52
  6. Step 6: Final answer
    x = 60,456.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.