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Finding the Fourth Proportional to 372,889.78, 559,356.77 and 116,770.25

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Solution

The fourth proportional to 372,889.78, 559,356.77 and 116,770.25 is: 175,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,889.78 : 559,356.77 = 116,770.25 : x
  2. Step 2: Convert to fraction form
    372,889.78/559,356.77 = 116,770.25/x
  3. Step 3: Cross multiply
    372,889.78x = 559,356.77 × 116,770.25
  4. Step 4: Simplify right side
    372,889.78x = 65,316,229,872.09
  5. Step 5: Solve for x
    x = 65,316,229,872.09/372,889.78
  6. Step 6: Final answer
    x = 175,162.30

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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.