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Finding the Fourth Proportional to 248,111.80, 372,169.98 and 70,618.76

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Solution

The fourth proportional to 248,111.80, 372,169.98 and 70,618.76 is: 105,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,111.80 : 372,169.98 = 70,618.76 : x
  2. Step 2: Convert to fraction form
    248,111.80/372,169.98 = 70,618.76/x
  3. Step 3: Cross multiply
    248,111.80x = 372,169.98 × 70,618.76
  4. Step 4: Simplify right side
    248,111.80x = 26,282,180,635.97
  5. Step 5: Solve for x
    x = 26,282,180,635.97/248,111.80
  6. Step 6: Final answer
    x = 105,928.78

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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.