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Finding the Fourth Proportional to 88,573.84, 122,162.78 and 56,745.70

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Solution

The fourth proportional to 88,573.84, 122,162.78 and 56,745.70 is: 78,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,573.84 : 122,162.78 = 56,745.70 : x
  2. Step 2: Convert to fraction form
    88,573.84/122,162.78 = 56,745.70/x
  3. Step 3: Cross multiply
    88,573.84x = 122,162.78 × 56,745.70
  4. Step 4: Simplify right side
    88,573.84x = 6,932,212,465.05
  5. Step 5: Solve for x
    x = 6,932,212,465.05/88,573.84
  6. Step 6: Final answer
    x = 78,264.78

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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.