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Finding the Fourth Proportional to 356,457.25, 534,692.76 and 131,701.69

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Solution

The fourth proportional to 356,457.25, 534,692.76 and 131,701.69 is: 197,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,457.25 : 534,692.76 = 131,701.69 : x
  2. Step 2: Convert to fraction form
    356,457.25/534,692.76 = 131,701.69/x
  3. Step 3: Cross multiply
    356,457.25x = 534,692.76 × 131,701.69
  4. Step 4: Simplify right side
    356,457.25x = 70,419,940,122.76
  5. Step 5: Solve for x
    x = 70,419,940,122.76/356,457.25
  6. Step 6: Final answer
    x = 197,555.08

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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.