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Finding the Fourth Proportional to 250,555.25, 375,825.58 and 92,780.21

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Solution

The fourth proportional to 250,555.25, 375,825.58 and 92,780.21 is: 139,167.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,555.25 : 375,825.58 = 92,780.21 : x
  2. Step 2: Convert to fraction form
    250,555.25/375,825.58 = 92,780.21/x
  3. Step 3: Cross multiply
    250,555.25x = 375,825.58 × 92,780.21
  4. Step 4: Simplify right side
    250,555.25x = 34,869,176,235.77
  5. Step 5: Solve for x
    x = 34,869,176,235.77/250,555.25
  6. Step 6: Final answer
    x = 139,167.61

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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.