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Finding the Fourth Proportional to 372,124.16, 513,677.42 and 263,794.72

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Solution

The fourth proportional to 372,124.16, 513,677.42 and 263,794.72 is: 364,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,124.16 : 513,677.42 = 263,794.72 : x
  2. Step 2: Convert to fraction form
    372,124.16/513,677.42 = 263,794.72/x
  3. Step 3: Cross multiply
    372,124.16x = 513,677.42 × 263,794.72
  4. Step 4: Simplify right side
    372,124.16x = 135,505,391,179.22
  5. Step 5: Solve for x
    x = 135,505,391,179.22/372,124.16
  6. Step 6: Final answer
    x = 364,140.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.