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Finding the Fourth Proportional to 272,063.40, 408,095.10 and 202,079.40

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Solution

The fourth proportional to 272,063.40, 408,095.10 and 202,079.40 is: 303,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,063.40 : 408,095.10 = 202,079.40 : x
  2. Step 2: Convert to fraction form
    272,063.40/408,095.10 = 202,079.40/x
  3. Step 3: Cross multiply
    272,063.40x = 408,095.10 × 202,079.40
  4. Step 4: Simplify right side
    272,063.40x = 82,467,612,950.94
  5. Step 5: Solve for x
    x = 82,467,612,950.94/272,063.40
  6. Step 6: Final answer
    x = 303,119.10

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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.