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Finding the Fourth Proportional to 305,818.99, 422,063.66 and 175,008.75

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Solution

The fourth proportional to 305,818.99, 422,063.66 and 175,008.75 is: 241,531.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,818.99 : 422,063.66 = 175,008.75 : x
  2. Step 2: Convert to fraction form
    305,818.99/422,063.66 = 175,008.75/x
  3. Step 3: Cross multiply
    305,818.99x = 422,063.66 × 175,008.75
  4. Step 4: Simplify right side
    305,818.99x = 73,864,834,785.92
  5. Step 5: Solve for x
    x = 73,864,834,785.92/305,818.99
  6. Step 6: Final answer
    x = 241,531.22

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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.