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Finding the Fourth Proportional to 253,838.28, 350,298.90 and 140,662.92

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Solution

The fourth proportional to 253,838.28, 350,298.90 and 140,662.92 is: 194,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,838.28 : 350,298.90 = 140,662.92 : x
  2. Step 2: Convert to fraction form
    253,838.28/350,298.90 = 140,662.92/x
  3. Step 3: Cross multiply
    253,838.28x = 350,298.90 × 140,662.92
  4. Step 4: Simplify right side
    253,838.28x = 49,274,066,146.79
  5. Step 5: Solve for x
    x = 49,274,066,146.79/253,838.28
  6. Step 6: Final answer
    x = 194,115.98

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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.