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Finding the Fourth Proportional to 543,279.54, 814,420.35 and 188,045.13

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Solution

The fourth proportional to 543,279.54, 814,420.35 and 188,045.13 is: 281,894.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,279.54 : 814,420.35 = 188,045.13 : x
  2. Step 2: Convert to fraction form
    543,279.54/814,420.35 = 188,045.13/x
  3. Step 3: Cross multiply
    543,279.54x = 814,420.35 × 188,045.13
  4. Step 4: Simplify right side
    543,279.54x = 153,147,780,590.40
  5. Step 5: Solve for x
    x = 153,147,780,590.40/543,279.54
  6. Step 6: Final answer
    x = 281,894.99

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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.