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Finding the Fourth Proportional to 140,190.98, 193,456.80 and 79,755.93

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Solution

The fourth proportional to 140,190.98, 193,456.80 and 79,755.93 is: 110,059.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,190.98 : 193,456.80 = 79,755.93 : x
  2. Step 2: Convert to fraction form
    140,190.98/193,456.80 = 79,755.93/x
  3. Step 3: Cross multiply
    140,190.98x = 193,456.80 × 79,755.93
  4. Step 4: Simplify right side
    140,190.98x = 15,429,326,998.82
  5. Step 5: Solve for x
    x = 15,429,326,998.82/140,190.98
  6. Step 6: Final answer
    x = 110,059.35

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1.5x scale

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.