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Finding the Fourth Proportional to 248,630.10, 372,945.15 and 154,151.70

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Solution

The fourth proportional to 248,630.10, 372,945.15 and 154,151.70 is: 231,227.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,630.10 : 372,945.15 = 154,151.70 : x
  2. Step 2: Convert to fraction form
    248,630.10/372,945.15 = 154,151.70/x
  3. Step 3: Cross multiply
    248,630.10x = 372,945.15 × 154,151.70
  4. Step 4: Simplify right side
    248,630.10x = 57,490,128,879.26
  5. Step 5: Solve for x
    x = 57,490,128,879.26/248,630.10
  6. Step 6: Final answer
    x = 231,227.55

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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.