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Finding the Fourth Proportional to 248,369.87, 372,558.31 and 70,876.90

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Solution

The fourth proportional to 248,369.87, 372,558.31 and 70,876.90 is: 106,316.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,369.87 : 372,558.31 = 70,876.90 : x
  2. Step 2: Convert to fraction form
    248,369.87/372,558.31 = 70,876.90/x
  3. Step 3: Cross multiply
    248,369.87x = 372,558.31 × 70,876.90
  4. Step 4: Simplify right side
    248,369.87x = 26,405,778,370.54
  5. Step 5: Solve for x
    x = 26,405,778,370.54/248,369.87
  6. Step 6: Final answer
    x = 106,316.35

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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.