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Finding the Fourth Proportional to 248,359.35, 342,726.39 and 140,922.98

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Solution

The fourth proportional to 248,359.35, 342,726.39 and 140,922.98 is: 194,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,359.35 : 342,726.39 = 140,922.98 : x
  2. Step 2: Convert to fraction form
    248,359.35/342,726.39 = 140,922.98/x
  3. Step 3: Cross multiply
    248,359.35x = 342,726.39 × 140,922.98
  4. Step 4: Simplify right side
    248,359.35x = 48,298,022,489.81
  5. Step 5: Solve for x
    x = 48,298,022,489.81/248,359.35
  6. Step 6: Final answer
    x = 194,468.31

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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.