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Finding the Fourth Proportional to 259,291.50, 388,937.25 and 62,299.50

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Solution

The fourth proportional to 259,291.50, 388,937.25 and 62,299.50 is: 93,449.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,291.50 : 388,937.25 = 62,299.50 : x
  2. Step 2: Convert to fraction form
    259,291.50/388,937.25 = 62,299.50/x
  3. Step 3: Cross multiply
    259,291.50x = 388,937.25 × 62,299.50
  4. Step 4: Simplify right side
    259,291.50x = 24,230,596,206.38
  5. Step 5: Solve for x
    x = 24,230,596,206.38/259,291.50
  6. Step 6: Final answer
    x = 93,449.25

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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.