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Finding the Fourth Proportional to 302,449.80, 453,674.70 and 80,833.80

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Solution

The fourth proportional to 302,449.80, 453,674.70 and 80,833.80 is: 121,250.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,449.80 : 453,674.70 = 80,833.80 : x
  2. Step 2: Convert to fraction form
    302,449.80/453,674.70 = 80,833.80/x
  3. Step 3: Cross multiply
    302,449.80x = 453,674.70 × 80,833.80
  4. Step 4: Simplify right side
    302,449.80x = 36,672,249,964.86
  5. Step 5: Solve for x
    x = 36,672,249,964.86/302,449.80
  6. Step 6: Final answer
    x = 121,250.70

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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.