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Finding the Fourth Proportional to 505,598.41, 758,399.69 and 126,518.11

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Solution

The fourth proportional to 505,598.41, 758,399.69 and 126,518.11 is: 189,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,598.41 : 758,399.69 = 126,518.11 : x
  2. Step 2: Convert to fraction form
    505,598.41/758,399.69 = 126,518.11/x
  3. Step 3: Cross multiply
    505,598.41x = 758,399.69 × 126,518.11
  4. Step 4: Simplify right side
    505,598.41x = 95,951,293,823.68
  5. Step 5: Solve for x
    x = 95,951,293,823.68/505,598.41
  6. Step 6: Final answer
    x = 189,777.68

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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.