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Finding the Fourth Proportional to 303,891.68, 455,473.43 and 141,566.97

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Solution

The fourth proportional to 303,891.68, 455,473.43 and 141,566.97 is: 212,180.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,891.68 : 455,473.43 = 141,566.97 : x
  2. Step 2: Convert to fraction form
    303,891.68/455,473.43 = 141,566.97/x
  3. Step 3: Cross multiply
    303,891.68x = 455,473.43 × 141,566.97
  4. Step 4: Simplify right side
    303,891.68x = 64,479,994,931.67
  5. Step 5: Solve for x
    x = 64,479,994,931.67/303,891.68
  6. Step 6: Final answer
    x = 212,180.85

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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.