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Finding the Fourth Proportional to 372,023.70, 513,369.72 and 208,671.24

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Solution

The fourth proportional to 372,023.70, 513,369.72 and 208,671.24 is: 287,953.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,023.70 : 513,369.72 = 208,671.24 : x
  2. Step 2: Convert to fraction form
    372,023.70/513,369.72 = 208,671.24/x
  3. Step 3: Cross multiply
    372,023.70x = 513,369.72 × 208,671.24
  4. Step 4: Simplify right side
    372,023.70x = 107,125,496,050.85
  5. Step 5: Solve for x
    x = 107,125,496,050.85/372,023.70
  6. Step 6: Final answer
    x = 287,953.42

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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.