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Finding the Fourth Proportional to 248,658.50, 372,545.48 and 143,259.68

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Solution

The fourth proportional to 248,658.50, 372,545.48 and 143,259.68 is: 214,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,658.50 : 372,545.48 = 143,259.68 : x
  2. Step 2: Convert to fraction form
    248,658.50/372,545.48 = 143,259.68/x
  3. Step 3: Cross multiply
    248,658.50x = 372,545.48 × 143,259.68
  4. Step 4: Simplify right side
    248,658.50x = 53,370,746,250.25
  5. Step 5: Solve for x
    x = 53,370,746,250.25/248,658.50
  6. Step 6: Final answer
    x = 214,634.71

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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.