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Finding the Fourth Proportional to 379,219.66, 568,863.51 and 98,739.34

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Solution

The fourth proportional to 379,219.66, 568,863.51 and 98,739.34 is: 148,117.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,219.66 : 568,863.51 = 98,739.34 : x
  2. Step 2: Convert to fraction form
    379,219.66/568,863.51 = 98,739.34/x
  3. Step 3: Cross multiply
    379,219.66x = 568,863.51 × 98,739.34
  4. Step 4: Simplify right side
    379,219.66x = 56,169,207,527.48
  5. Step 5: Solve for x
    x = 56,169,207,527.48/379,219.66
  6. Step 6: Final answer
    x = 148,117.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.