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Finding the Fourth Proportional to 202,849.40, 304,209.30 and 84,492.20

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Solution

The fourth proportional to 202,849.40, 304,209.30 and 84,492.20 is: 126,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,849.40 : 304,209.30 = 84,492.20 : x
  2. Step 2: Convert to fraction form
    202,849.40/304,209.30 = 84,492.20/x
  3. Step 3: Cross multiply
    202,849.40x = 304,209.30 × 84,492.20
  4. Step 4: Simplify right side
    202,849.40x = 25,703,313,017.46
  5. Step 5: Solve for x
    x = 25,703,313,017.46/202,849.40
  6. Step 6: Final answer
    x = 126,711.31

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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.