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Finding the Fourth Proportional to 346,676.40, 520,014.60 and 169,297.20

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Solution

The fourth proportional to 346,676.40, 520,014.60 and 169,297.20 is: 253,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,676.40 : 520,014.60 = 169,297.20 : x
  2. Step 2: Convert to fraction form
    346,676.40/520,014.60 = 169,297.20/x
  3. Step 3: Cross multiply
    346,676.40x = 520,014.60 × 169,297.20
  4. Step 4: Simplify right side
    346,676.40x = 88,037,015,739.12
  5. Step 5: Solve for x
    x = 88,037,015,739.12/346,676.40
  6. Step 6: Final answer
    x = 253,945.80

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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.