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Finding the Fourth Proportional to 253,650.40, 350,031.60 and 140,477.92

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Solution

The fourth proportional to 253,650.40, 350,031.60 and 140,477.92 is: 193,856.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,650.40 : 350,031.60 = 140,477.92 : x
  2. Step 2: Convert to fraction form
    253,650.40/350,031.60 = 140,477.92/x
  3. Step 3: Cross multiply
    253,650.40x = 350,031.60 × 140,477.92
  4. Step 4: Simplify right side
    253,650.40x = 49,171,711,102.27
  5. Step 5: Solve for x
    x = 49,171,711,102.27/253,650.40
  6. Step 6: Final answer
    x = 193,856.23

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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.