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Finding the Fourth Proportional to 57,880.61, 87,254.74 and 54,022.82

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Solution

The fourth proportional to 57,880.61, 87,254.74 and 54,022.82 is: 81,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,880.61 : 87,254.74 = 54,022.82 : x
  2. Step 2: Convert to fraction form
    57,880.61/87,254.74 = 54,022.82/x
  3. Step 3: Cross multiply
    57,880.61x = 87,254.74 × 54,022.82
  4. Step 4: Simplify right side
    57,880.61x = 4,713,746,440.54
  5. Step 5: Solve for x
    x = 4,713,746,440.54/57,880.61
  6. Step 6: Final answer
    x = 81,439.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.