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Finding the Fourth Proportional to 250,391.48, 345,871.50 and 186,618.56

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Solution

The fourth proportional to 250,391.48, 345,871.50 and 186,618.56 is: 257,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,391.48 : 345,871.50 = 186,618.56 : x
  2. Step 2: Convert to fraction form
    250,391.48/345,871.50 = 186,618.56/x
  3. Step 3: Cross multiply
    250,391.48x = 345,871.50 × 186,618.56
  4. Step 4: Simplify right side
    250,391.48x = 64,546,041,275.04
  5. Step 5: Solve for x
    x = 64,546,041,275.04/250,391.48
  6. Step 6: Final answer
    x = 257,780.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.