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Finding the Fourth Proportional to 118,234.80, 163,167.49 and 64,523.28

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Solution

The fourth proportional to 118,234.80, 163,167.49 and 64,523.28 is: 89,044.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,234.80 : 163,167.49 = 64,523.28 : x
  2. Step 2: Convert to fraction form
    118,234.80/163,167.49 = 64,523.28/x
  3. Step 3: Cross multiply
    118,234.80x = 163,167.49 × 64,523.28
  4. Step 4: Simplify right side
    118,234.80x = 10,528,102,336.70
  5. Step 5: Solve for x
    x = 10,528,102,336.70/118,234.80
  6. Step 6: Final answer
    x = 89,044.02

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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.