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Finding the Fourth Proportional to 301,142.21, 451,692.18 and 141,253.22

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Solution

The fourth proportional to 301,142.21, 451,692.18 and 141,253.22 is: 211,869.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,142.21 : 451,692.18 = 141,253.22 : x
  2. Step 2: Convert to fraction form
    301,142.21/451,692.18 = 141,253.22/x
  3. Step 3: Cross multiply
    301,142.21x = 451,692.18 × 141,253.22
  4. Step 4: Simplify right side
    301,142.21x = 63,802,976,003.05
  5. Step 5: Solve for x
    x = 63,802,976,003.05/301,142.21
  6. Step 6: Final answer
    x = 211,869.92

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1.5x scale

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.