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Finding the Fourth Proportional to 326,136.58, 490,137.99 and 160,041.22

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Solution

The fourth proportional to 326,136.58, 490,137.99 and 160,041.22 is: 240,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,136.58 : 490,137.99 = 160,041.22 : x
  2. Step 2: Convert to fraction form
    326,136.58/490,137.99 = 160,041.22/x
  3. Step 3: Cross multiply
    326,136.58x = 490,137.99 × 160,041.22
  4. Step 4: Simplify right side
    326,136.58x = 78,442,281,887.95
  5. Step 5: Solve for x
    x = 78,442,281,887.95/326,136.58
  6. Step 6: Final answer
    x = 240,519.73

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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.