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Finding the Fourth Proportional to 248,483.73, 372,785.18 and 80,019.93

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Solution

The fourth proportional to 248,483.73, 372,785.18 and 80,019.93 is: 120,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,483.73 : 372,785.18 = 80,019.93 : x
  2. Step 2: Convert to fraction form
    248,483.73/372,785.18 = 80,019.93/x
  3. Step 3: Cross multiply
    248,483.73x = 372,785.18 × 80,019.93
  4. Step 4: Simplify right side
    248,483.73x = 29,830,243,608.54
  5. Step 5: Solve for x
    x = 29,830,243,608.54/248,483.73
  6. Step 6: Final answer
    x = 120,049.08

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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.