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Finding the Fourth Proportional to 76,907.52, 106,134.92 and 44,639.72

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Solution

The fourth proportional to 76,907.52, 106,134.92 and 44,639.72 is: 61,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,907.52 : 106,134.92 = 44,639.72 : x
  2. Step 2: Convert to fraction form
    76,907.52/106,134.92 = 44,639.72/x
  3. Step 3: Cross multiply
    76,907.52x = 106,134.92 × 44,639.72
  4. Step 4: Simplify right side
    76,907.52x = 4,737,833,111.02
  5. Step 5: Solve for x
    x = 4,737,833,111.02/76,907.52
  6. Step 6: Final answer
    x = 61,604.29

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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.