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Finding the Fourth Proportional to 543,143.08, 814,520.22 and 188,061.76

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Solution

The fourth proportional to 543,143.08, 814,520.22 and 188,061.76 is: 282,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,143.08 : 814,520.22 = 188,061.76 : x
  2. Step 2: Convert to fraction form
    543,143.08/814,520.22 = 188,061.76/x
  3. Step 3: Cross multiply
    543,143.08x = 814,520.22 × 188,061.76
  4. Step 4: Simplify right side
    543,143.08x = 153,180,106,128.79
  5. Step 5: Solve for x
    x = 153,180,106,128.79/543,143.08
  6. Step 6: Final answer
    x = 282,025.33

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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.