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Finding the Fourth Proportional to 302,466.80, 453,700.20 and 80,850.80

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Solution

The fourth proportional to 302,466.80, 453,700.20 and 80,850.80 is: 121,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,466.80 : 453,700.20 = 80,850.80 : x
  2. Step 2: Convert to fraction form
    302,466.80/453,700.20 = 80,850.80/x
  3. Step 3: Cross multiply
    302,466.80x = 453,700.20 × 80,850.80
  4. Step 4: Simplify right side
    302,466.80x = 36,682,024,130.16
  5. Step 5: Solve for x
    x = 36,682,024,130.16/302,466.80
  6. Step 6: Final answer
    x = 121,276.20

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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.