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Finding the Fourth Proportional to 88,652.56, 122,340.56 and 56,821.46

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Solution

The fourth proportional to 88,652.56, 122,340.56 and 56,821.46 is: 78,413.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,652.56 : 122,340.56 = 56,821.46 : x
  2. Step 2: Convert to fraction form
    88,652.56/122,340.56 = 56,821.46/x
  3. Step 3: Cross multiply
    88,652.56x = 122,340.56 × 56,821.46
  4. Step 4: Simplify right side
    88,652.56x = 6,951,569,684.32
  5. Step 5: Solve for x
    x = 6,951,569,684.32/88,652.56
  6. Step 6: Final answer
    x = 78,413.64

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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.