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Finding the Fourth Proportional to 67,661.40, 93,370.80 and 37,447.96

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Solution

The fourth proportional to 67,661.40, 93,370.80 and 37,447.96 is: 51,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.40 : 93,370.80 = 37,447.96 : x
  2. Step 2: Convert to fraction form
    67,661.40/93,370.80 = 37,447.96/x
  3. Step 3: Cross multiply
    67,661.40x = 93,370.80 × 37,447.96
  4. Step 4: Simplify right side
    67,661.40x = 3,496,545,983.57
  5. Step 5: Solve for x
    x = 3,496,545,983.57/67,661.40
  6. Step 6: Final answer
    x = 51,677.12

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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.