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Finding the Fourth Proportional to 55,754.92, 76,835.58 and 54,730.10

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Solution

The fourth proportional to 55,754.92, 76,835.58 and 54,730.10 is: 75,423.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,754.92 : 76,835.58 = 54,730.10 : x
  2. Step 2: Convert to fraction form
    55,754.92/76,835.58 = 54,730.10/x
  3. Step 3: Cross multiply
    55,754.92x = 76,835.58 × 54,730.10
  4. Step 4: Simplify right side
    55,754.92x = 4,205,218,976.96
  5. Step 5: Solve for x
    x = 4,205,218,976.96/55,754.92
  6. Step 6: Final answer
    x = 75,423.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.