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Finding the Fourth Proportional to 118,806.17, 163,957.03 and 67,827.20

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Solution

The fourth proportional to 118,806.17, 163,957.03 and 67,827.20 is: 93,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,806.17 : 163,957.03 = 67,827.20 : x
  2. Step 2: Convert to fraction form
    118,806.17/163,957.03 = 67,827.20/x
  3. Step 3: Cross multiply
    118,806.17x = 163,957.03 × 67,827.20
  4. Step 4: Simplify right side
    118,806.17x = 11,120,745,275.86
  5. Step 5: Solve for x
    x = 11,120,745,275.86/118,806.17
  6. Step 6: Final answer
    x = 93,604.11

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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.