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Finding the Fourth Proportional to 259,310.60, 388,965.90 and 62,318.60

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Solution

The fourth proportional to 259,310.60, 388,965.90 and 62,318.60 is: 93,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,310.60 : 388,965.90 = 62,318.60 : x
  2. Step 2: Convert to fraction form
    259,310.60/388,965.90 = 62,318.60/x
  3. Step 3: Cross multiply
    259,310.60x = 388,965.90 × 62,318.60
  4. Step 4: Simplify right side
    259,310.60x = 24,239,810,335.74
  5. Step 5: Solve for x
    x = 24,239,810,335.74/259,310.60
  6. Step 6: Final answer
    x = 93,477.90

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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.