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Finding the Fourth Proportional to 45,199.88, 67,811.34 and 14,035.40

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Solution

The fourth proportional to 45,199.88, 67,811.34 and 14,035.40 is: 21,056.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,199.88 : 67,811.34 = 14,035.40 : x
  2. Step 2: Convert to fraction form
    45,199.88/67,811.34 = 14,035.40/x
  3. Step 3: Cross multiply
    45,199.88x = 67,811.34 × 14,035.40
  4. Step 4: Simplify right side
    45,199.88x = 951,759,281.44
  5. Step 5: Solve for x
    x = 951,759,281.44/45,199.88
  6. Step 6: Final answer
    x = 21,056.68

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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.