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Finding the Fourth Proportional to 67,988.70, 93,837.83 and 43,443.81

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Solution

The fourth proportional to 67,988.70, 93,837.83 and 43,443.81 is: 59,961.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,988.70 : 93,837.83 = 43,443.81 : x
  2. Step 2: Convert to fraction form
    67,988.70/93,837.83 = 43,443.81/x
  3. Step 3: Cross multiply
    67,988.70x = 93,837.83 × 43,443.81
  4. Step 4: Simplify right side
    67,988.70x = 4,076,672,640.11
  5. Step 5: Solve for x
    x = 4,076,672,640.11/67,988.70
  6. Step 6: Final answer
    x = 59,961.03

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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.