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Finding the Fourth Proportional to 250,486.15, 375,692.77 and 72,945.49

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Solution

The fourth proportional to 250,486.15, 375,692.77 and 72,945.49 is: 109,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,486.15 : 375,692.77 = 72,945.49 : x
  2. Step 2: Convert to fraction form
    250,486.15/375,692.77 = 72,945.49/x
  3. Step 3: Cross multiply
    250,486.15x = 375,692.77 × 72,945.49
  4. Step 4: Simplify right side
    250,486.15x = 27,405,093,197.11
  5. Step 5: Solve for x
    x = 27,405,093,197.11/250,486.15
  6. Step 6: Final answer
    x = 109,407.62

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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.