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Finding the Fourth Proportional to 248,132.50, 372,149.34 and 70,640.98

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Solution

The fourth proportional to 248,132.50, 372,149.34 and 70,640.98 is: 105,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,132.50 : 372,149.34 = 70,640.98 : x
  2. Step 2: Convert to fraction form
    248,132.50/372,149.34 = 70,640.98/x
  3. Step 3: Cross multiply
    248,132.50x = 372,149.34 × 70,640.98
  4. Step 4: Simplify right side
    248,132.50x = 26,288,994,083.95
  5. Step 5: Solve for x
    x = 26,288,994,083.95/248,132.50
  6. Step 6: Final answer
    x = 105,947.40

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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.