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Finding the Fourth Proportional to 253,884.56, 350,364.98 and 139,160.92

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Solution

The fourth proportional to 253,884.56, 350,364.98 and 139,160.92 is: 192,044.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,884.56 : 350,364.98 = 139,160.92 : x
  2. Step 2: Convert to fraction form
    253,884.56/350,364.98 = 139,160.92/x
  3. Step 3: Cross multiply
    253,884.56x = 350,364.98 × 139,160.92
  4. Step 4: Simplify right side
    253,884.56x = 48,757,112,952.58
  5. Step 5: Solve for x
    x = 48,757,112,952.58/253,884.56
  6. Step 6: Final answer
    x = 192,044.42

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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.