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Finding the Fourth Proportional to 302,451.70, 453,677.55 and 202,918.90

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Solution

The fourth proportional to 302,451.70, 453,677.55 and 202,918.90 is: 304,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,451.70 : 453,677.55 = 202,918.90 : x
  2. Step 2: Convert to fraction form
    302,451.70/453,677.55 = 202,918.90/x
  3. Step 3: Cross multiply
    302,451.70x = 453,677.55 × 202,918.90
  4. Step 4: Simplify right side
    302,451.70x = 92,059,749,400.70
  5. Step 5: Solve for x
    x = 92,059,749,400.70/302,451.70
  6. Step 6: Final answer
    x = 304,378.35

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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.