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Finding the Fourth Proportional to 118,248.63, 163,197.18 and 67,269.66

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Solution

The fourth proportional to 118,248.63, 163,197.18 and 67,269.66 is: 92,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,248.63 : 163,197.18 = 67,269.66 : x
  2. Step 2: Convert to fraction form
    118,248.63/163,197.18 = 67,269.66/x
  3. Step 3: Cross multiply
    118,248.63x = 163,197.18 × 67,269.66
  4. Step 4: Simplify right side
    118,248.63x = 10,978,218,811.56
  5. Step 5: Solve for x
    x = 10,978,218,811.56/118,248.63
  6. Step 6: Final answer
    x = 92,840.14

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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.