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Finding the Fourth Proportional to 89,859.06, 134,787.78 and 34,455.06

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Solution

The fourth proportional to 89,859.06, 134,787.78 and 34,455.06 is: 51,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,859.06 : 134,787.78 = 34,455.06 : x
  2. Step 2: Convert to fraction form
    89,859.06/134,787.78 = 34,455.06/x
  3. Step 3: Cross multiply
    89,859.06x = 134,787.78 × 34,455.06
  4. Step 4: Simplify right side
    89,859.06x = 4,644,121,047.17
  5. Step 5: Solve for x
    x = 4,644,121,047.17/89,859.06
  6. Step 6: Final answer
    x = 51,682.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.