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Finding the Fourth Proportional to 109,252.80, 163,684.80 and 92,534.40

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Solution

The fourth proportional to 109,252.80, 163,684.80 and 92,534.40 is: 138,636.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,252.80 : 163,684.80 = 92,534.40 : x
  2. Step 2: Convert to fraction form
    109,252.80/163,684.80 = 92,534.40/x
  3. Step 3: Cross multiply
    109,252.80x = 163,684.80 × 92,534.40
  4. Step 4: Simplify right side
    109,252.80x = 15,146,474,757.12
  5. Step 5: Solve for x
    x = 15,146,474,757.12/109,252.80
  6. Step 6: Final answer
    x = 138,636.95

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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.