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Finding the Fourth Proportional to 250,545.09, 375,852.27 and 82,078.68

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Solution

The fourth proportional to 250,545.09, 375,852.27 and 82,078.68 is: 123,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,545.09 : 375,852.27 = 82,078.68 : x
  2. Step 2: Convert to fraction form
    250,545.09/375,852.27 = 82,078.68/x
  3. Step 3: Cross multiply
    250,545.09x = 375,852.27 × 82,078.68
  4. Step 4: Simplify right side
    250,545.09x = 30,849,458,196.60
  5. Step 5: Solve for x
    x = 30,849,458,196.60/250,545.09
  6. Step 6: Final answer
    x = 123,129.37

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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.