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Finding the Fourth Proportional to 394,675.63, 592,012.05 and 141,955.69

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Solution

The fourth proportional to 394,675.63, 592,012.05 and 141,955.69 is: 212,933.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,675.63 : 592,012.05 = 141,955.69 : x
  2. Step 2: Convert to fraction form
    394,675.63/592,012.05 = 141,955.69/x
  3. Step 3: Cross multiply
    394,675.63x = 592,012.05 × 141,955.69
  4. Step 4: Simplify right side
    394,675.63x = 84,039,479,046.06
  5. Step 5: Solve for x
    x = 84,039,479,046.06/394,675.63
  6. Step 6: Final answer
    x = 212,933.03

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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.