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Finding the Fourth Proportional to 297,363.21, 446,040.90 and 72,725.51

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Solution

The fourth proportional to 297,363.21, 446,040.90 and 72,725.51 is: 109,087.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,363.21 : 446,040.90 = 72,725.51 : x
  2. Step 2: Convert to fraction form
    297,363.21/446,040.90 = 72,725.51/x
  3. Step 3: Cross multiply
    297,363.21x = 446,040.90 × 72,725.51
  4. Step 4: Simplify right side
    297,363.21x = 32,438,549,703.15
  5. Step 5: Solve for x
    x = 32,438,549,703.15/297,363.21
  6. Step 6: Final answer
    x = 109,087.30

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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.