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Finding the Fourth Proportional to 60,740.80, 91,046.40 and 23,286.40

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Solution

The fourth proportional to 60,740.80, 91,046.40 and 23,286.40 is: 34,904.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,740.80 : 91,046.40 = 23,286.40 : x
  2. Step 2: Convert to fraction form
    60,740.80/91,046.40 = 23,286.40/x
  3. Step 3: Cross multiply
    60,740.80x = 91,046.40 × 23,286.40
  4. Step 4: Simplify right side
    60,740.80x = 2,120,142,888.96
  5. Step 5: Solve for x
    x = 2,120,142,888.96/60,740.80
  6. Step 6: Final answer
    x = 34,904.76

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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.