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Finding the Fourth Proportional to 297,909.31, 446,891.51 and 84,681.67

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Solution

The fourth proportional to 297,909.31, 446,891.51 and 84,681.67 is: 127,030.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,909.31 : 446,891.51 = 84,681.67 : x
  2. Step 2: Convert to fraction form
    297,909.31/446,891.51 = 84,681.67/x
  3. Step 3: Cross multiply
    297,909.31x = 446,891.51 × 84,681.67
  4. Step 4: Simplify right side
    297,909.31x = 37,843,519,375.62
  5. Step 5: Solve for x
    x = 37,843,519,375.62/297,909.31
  6. Step 6: Final answer
    x = 127,030.33

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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.