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Finding the Fourth Proportional to 67,449.90, 101,089.80 and 34,178.34

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Solution

The fourth proportional to 67,449.90, 101,089.80 and 34,178.34 is: 51,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,449.90 : 101,089.80 = 34,178.34 : x
  2. Step 2: Convert to fraction form
    67,449.90/101,089.80 = 34,178.34/x
  3. Step 3: Cross multiply
    67,449.90x = 101,089.80 × 34,178.34
  4. Step 4: Simplify right side
    67,449.90x = 3,455,081,554.93
  5. Step 5: Solve for x
    x = 3,455,081,554.93/67,449.90
  6. Step 6: Final answer
    x = 51,224.41

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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.