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Finding the Fourth Proportional to 193,276.60, 289,966.10 and 68,604.60

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Solution

The fourth proportional to 193,276.60, 289,966.10 and 68,604.60 is: 102,925.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,276.60 : 289,966.10 = 68,604.60 : x
  2. Step 2: Convert to fraction form
    193,276.60/289,966.10 = 68,604.60/x
  3. Step 3: Cross multiply
    193,276.60x = 289,966.10 × 68,604.60
  4. Step 4: Simplify right side
    193,276.60x = 19,893,008,304.06
  5. Step 5: Solve for x
    x = 19,893,008,304.06/193,276.60
  6. Step 6: Final answer
    x = 102,925.07

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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.