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Finding the Fourth Proportional to 373,518.86, 515,455.40 and 203,752.98

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Solution

The fourth proportional to 373,518.86, 515,455.40 and 203,752.98 is: 281,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,518.86 : 515,455.40 = 203,752.98 : x
  2. Step 2: Convert to fraction form
    373,518.86/515,455.40 = 203,752.98/x
  3. Step 3: Cross multiply
    373,518.86x = 515,455.40 × 203,752.98
  4. Step 4: Simplify right side
    373,518.86x = 105,025,572,788.33
  5. Step 5: Solve for x
    x = 105,025,572,788.33/373,518.86
  6. Step 6: Final answer
    x = 281,178.77

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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.