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Finding the Fourth Proportional to 109,410.90, 164,087.55 and 34,530.90

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Solution

The fourth proportional to 109,410.90, 164,087.55 and 34,530.90 is: 51,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,410.90 : 164,087.55 = 34,530.90 : x
  2. Step 2: Convert to fraction form
    109,410.90/164,087.55 = 34,530.90/x
  3. Step 3: Cross multiply
    109,410.90x = 164,087.55 × 34,530.90
  4. Step 4: Simplify right side
    109,410.90x = 5,666,090,780.30
  5. Step 5: Solve for x
    x = 5,666,090,780.30/109,410.90
  6. Step 6: Final answer
    x = 51,787.26

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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.