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Finding the Fourth Proportional to 214,820.40, 322,230.60 and 57,064.80

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Solution

The fourth proportional to 214,820.40, 322,230.60 and 57,064.80 is: 85,597.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,820.40 : 322,230.60 = 57,064.80 : x
  2. Step 2: Convert to fraction form
    214,820.40/322,230.60 = 57,064.80/x
  3. Step 3: Cross multiply
    214,820.40x = 322,230.60 × 57,064.80
  4. Step 4: Simplify right side
    214,820.40x = 18,388,024,742.88
  5. Step 5: Solve for x
    x = 18,388,024,742.88/214,820.40
  6. Step 6: Final answer
    x = 85,597.20

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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.