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Finding the Fourth Proportional to 253,701.06, 350,079.21 and 140,495.46

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Solution

The fourth proportional to 253,701.06, 350,079.21 and 140,495.46 is: 193,868.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,701.06 : 350,079.21 = 140,495.46 : x
  2. Step 2: Convert to fraction form
    253,701.06/350,079.21 = 140,495.46/x
  3. Step 3: Cross multiply
    253,701.06x = 350,079.21 × 140,495.46
  4. Step 4: Simplify right side
    253,701.06x = 49,184,539,645.39
  5. Step 5: Solve for x
    x = 49,184,539,645.39/253,701.06
  6. Step 6: Final answer
    x = 193,868.09

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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.