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Finding the Fourth Proportional to 248,195.70, 372,293.55 and 206,861.40

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Solution

The fourth proportional to 248,195.70, 372,293.55 and 206,861.40 is: 310,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,195.70 : 372,293.55 = 206,861.40 : x
  2. Step 2: Convert to fraction form
    248,195.70/372,293.55 = 206,861.40/x
  3. Step 3: Cross multiply
    248,195.70x = 372,293.55 × 206,861.40
  4. Step 4: Simplify right side
    248,195.70x = 77,013,164,963.97
  5. Step 5: Solve for x
    x = 77,013,164,963.97/248,195.70
  6. Step 6: Final answer
    x = 310,292.10

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1.5x scale

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.