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Finding the Fourth Proportional to 248,485.86, 342,863.82 and 146,543.45

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Solution

The fourth proportional to 248,485.86, 342,863.82 and 146,543.45 is: 202,202.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,485.86 : 342,863.82 = 146,543.45 : x
  2. Step 2: Convert to fraction form
    248,485.86/342,863.82 = 146,543.45/x
  3. Step 3: Cross multiply
    248,485.86x = 342,863.82 × 146,543.45
  4. Step 4: Simplify right side
    248,485.86x = 50,244,445,348.66
  5. Step 5: Solve for x
    x = 50,244,445,348.66/248,485.86
  6. Step 6: Final answer
    x = 202,202.43

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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.