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Finding the Fourth Proportional to 202,995.20, 304,492.80 and 192,108.80

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Solution

The fourth proportional to 202,995.20, 304,492.80 and 192,108.80 is: 288,163.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,995.20 : 304,492.80 = 192,108.80 : x
  2. Step 2: Convert to fraction form
    202,995.20/304,492.80 = 192,108.80/x
  3. Step 3: Cross multiply
    202,995.20x = 304,492.80 × 192,108.80
  4. Step 4: Simplify right side
    202,995.20x = 58,495,746,416.64
  5. Step 5: Solve for x
    x = 58,495,746,416.64/202,995.20
  6. Step 6: Final answer
    x = 288,163.20

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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.