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Finding the Fourth Proportional to 67,857.60, 93,660.66 and 43,674.96

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Solution

The fourth proportional to 67,857.60, 93,660.66 and 43,674.96 is: 60,282.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,857.60 : 93,660.66 = 43,674.96 : x
  2. Step 2: Convert to fraction form
    67,857.60/93,660.66 = 43,674.96/x
  3. Step 3: Cross multiply
    67,857.60x = 93,660.66 × 43,674.96
  4. Step 4: Simplify right side
    67,857.60x = 4,090,625,579.07
  5. Step 5: Solve for x
    x = 4,090,625,579.07/67,857.60
  6. Step 6: Final answer
    x = 60,282.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.