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Finding the Fourth Proportional to 185,217.59, 277,661.39 and 66,862.59

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Solution

The fourth proportional to 185,217.59, 277,661.39 and 66,862.59 is: 100,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,217.59 : 277,661.39 = 66,862.59 : x
  2. Step 2: Convert to fraction form
    185,217.59/277,661.39 = 66,862.59/x
  3. Step 3: Cross multiply
    185,217.59x = 277,661.39 × 66,862.59
  4. Step 4: Simplify right side
    185,217.59x = 18,565,159,344.09
  5. Step 5: Solve for x
    x = 18,565,159,344.09/185,217.59
  6. Step 6: Final answer
    x = 100,234.32

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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.