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Finding the Fourth Proportional to 77,852.78, 107,437.65 and 44,320.94

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Solution

The fourth proportional to 77,852.78, 107,437.65 and 44,320.94 is: 61,163.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,852.78 : 107,437.65 = 44,320.94 : x
  2. Step 2: Convert to fraction form
    77,852.78/107,437.65 = 44,320.94/x
  3. Step 3: Cross multiply
    77,852.78x = 107,437.65 × 44,320.94
  4. Step 4: Simplify right side
    77,852.78x = 4,761,737,639.39
  5. Step 5: Solve for x
    x = 4,761,737,639.39/77,852.78
  6. Step 6: Final answer
    x = 61,163.36

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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.