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Finding the Fourth Proportional to 86,601.69, 119,509.16 and 48,361.86

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Solution

The fourth proportional to 86,601.69, 119,509.16 and 48,361.86 is: 66,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,601.69 : 119,509.16 = 48,361.86 : x
  2. Step 2: Convert to fraction form
    86,601.69/119,509.16 = 48,361.86/x
  3. Step 3: Cross multiply
    86,601.69x = 119,509.16 × 48,361.86
  4. Step 4: Simplify right side
    86,601.69x = 5,779,685,022.83
  5. Step 5: Solve for x
    x = 5,779,685,022.83/86,601.69
  6. Step 6: Final answer
    x = 66,738.71

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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.