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Finding the Fourth Proportional to 302,616.19, 453,818.20 and 89,327.20

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Solution

The fourth proportional to 302,616.19, 453,818.20 and 89,327.20 is: 133,959.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,616.19 : 453,818.20 = 89,327.20 : x
  2. Step 2: Convert to fraction form
    302,616.19/453,818.20 = 89,327.20/x
  3. Step 3: Cross multiply
    302,616.19x = 453,818.20 × 89,327.20
  4. Step 4: Simplify right side
    302,616.19x = 40,538,309,115.04
  5. Step 5: Solve for x
    x = 40,538,309,115.04/302,616.19
  6. Step 6: Final answer
    x = 133,959.49

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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.