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Finding the Fourth Proportional to 73,826.70, 101,880.86 and 40,292.70

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Solution

The fourth proportional to 73,826.70, 101,880.86 and 40,292.70 is: 55,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,826.70 : 101,880.86 = 40,292.70 : x
  2. Step 2: Convert to fraction form
    73,826.70/101,880.86 = 40,292.70/x
  3. Step 3: Cross multiply
    73,826.70x = 101,880.86 × 40,292.70
  4. Step 4: Simplify right side
    73,826.70x = 4,105,054,927.72
  5. Step 5: Solve for x
    x = 4,105,054,927.72/73,826.70
  6. Step 6: Final answer
    x = 55,603.93

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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.