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Finding the Fourth Proportional to 88,661.63, 122,336.30 and 52,854.97

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Solution

The fourth proportional to 88,661.63, 122,336.30 and 52,854.97 is: 72,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,661.63 : 122,336.30 = 52,854.97 : x
  2. Step 2: Convert to fraction form
    88,661.63/122,336.30 = 52,854.97/x
  3. Step 3: Cross multiply
    88,661.63x = 122,336.30 × 52,854.97
  4. Step 4: Simplify right side
    88,661.63x = 6,466,081,466.41
  5. Step 5: Solve for x
    x = 6,466,081,466.41/88,661.63
  6. Step 6: Final answer
    x = 72,929.87

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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.