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Finding the Fourth Proportional to 67,994.85, 101,888.33 and 45,725.79

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Solution

The fourth proportional to 67,994.85, 101,888.33 and 45,725.79 is: 68,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,994.85 : 101,888.33 = 45,725.79 : x
  2. Step 2: Convert to fraction form
    67,994.85/101,888.33 = 45,725.79/x
  3. Step 3: Cross multiply
    67,994.85x = 101,888.33 × 45,725.79
  4. Step 4: Simplify right side
    67,994.85x = 4,658,924,152.40
  5. Step 5: Solve for x
    x = 4,658,924,152.40/67,994.85
  6. Step 6: Final answer
    x = 68,518.78

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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.