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Finding the Fourth Proportional to 54,064.77, 81,111.78 and 48,859.71

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Solution

The fourth proportional to 54,064.77, 81,111.78 and 48,859.71 is: 73,302.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,064.77 : 81,111.78 = 48,859.71 : x
  2. Step 2: Convert to fraction form
    54,064.77/81,111.78 = 48,859.71/x
  3. Step 3: Cross multiply
    54,064.77x = 81,111.78 × 48,859.71
  4. Step 4: Simplify right side
    54,064.77x = 3,963,098,048.38
  5. Step 5: Solve for x
    x = 3,963,098,048.38/54,064.77
  6. Step 6: Final answer
    x = 73,302.78

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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.