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Finding the Fourth Proportional to 88,710.53, 122,340.61 and 56,873.21

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Solution

The fourth proportional to 88,710.53, 122,340.61 and 56,873.21 is: 78,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,710.53 : 122,340.61 = 56,873.21 : x
  2. Step 2: Convert to fraction form
    88,710.53/122,340.61 = 56,873.21/x
  3. Step 3: Cross multiply
    88,710.53x = 122,340.61 × 56,873.21
  4. Step 4: Simplify right side
    88,710.53x = 6,957,903,204.06
  5. Step 5: Solve for x
    x = 6,957,903,204.06/88,710.53
  6. Step 6: Final answer
    x = 78,433.79

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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.