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Finding the Fourth Proportional to 192,693.60, 289,040.40 and 82,101.60

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Solution

The fourth proportional to 192,693.60, 289,040.40 and 82,101.60 is: 123,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,693.60 : 289,040.40 = 82,101.60 : x
  2. Step 2: Convert to fraction form
    192,693.60/289,040.40 = 82,101.60/x
  3. Step 3: Cross multiply
    192,693.60x = 289,040.40 × 82,101.60
  4. Step 4: Simplify right side
    192,693.60x = 23,730,679,304.64
  5. Step 5: Solve for x
    x = 23,730,679,304.64/192,693.60
  6. Step 6: Final answer
    x = 123,152.40

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1.5x scale

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.