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Finding the Fourth Proportional to 88,490.84, 122,113.89 and 54,093.15

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Solution

The fourth proportional to 88,490.84, 122,113.89 and 54,093.15 is: 74,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,490.84 : 122,113.89 = 54,093.15 : x
  2. Step 2: Convert to fraction form
    88,490.84/122,113.89 = 54,093.15/x
  3. Step 3: Cross multiply
    88,490.84x = 122,113.89 × 54,093.15
  4. Step 4: Simplify right side
    88,490.84x = 6,605,524,968.85
  5. Step 5: Solve for x
    x = 6,605,524,968.85/88,490.84
  6. Step 6: Final answer
    x = 74,646.43

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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.