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Finding the Fourth Proportional to 321,068.60, 481,142.10 and 236,166.20

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Solution

The fourth proportional to 321,068.60, 481,142.10 and 236,166.20 is: 353,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,068.60 : 481,142.10 = 236,166.20 : x
  2. Step 2: Convert to fraction form
    321,068.60/481,142.10 = 236,166.20/x
  3. Step 3: Cross multiply
    321,068.60x = 481,142.10 × 236,166.20
  4. Step 4: Simplify right side
    321,068.60x = 113,629,501,417.02
  5. Step 5: Solve for x
    x = 113,629,501,417.02/321,068.60
  6. Step 6: Final answer
    x = 353,910.35

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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.