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Finding the Fourth Proportional to 302,351.90, 453,090.45 and 133,734.20

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Solution

The fourth proportional to 302,351.90, 453,090.45 and 133,734.20 is: 200,407.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,351.90 : 453,090.45 = 133,734.20 : x
  2. Step 2: Convert to fraction form
    302,351.90/453,090.45 = 133,734.20/x
  3. Step 3: Cross multiply
    302,351.90x = 453,090.45 × 133,734.20
  4. Step 4: Simplify right side
    302,351.90x = 60,593,688,858.39
  5. Step 5: Solve for x
    x = 60,593,688,858.39/302,351.90
  6. Step 6: Final answer
    x = 200,407.83

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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.