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Finding the Fourth Proportional to 60,379.81, 90,606.57 and 38,162.59

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Solution

The fourth proportional to 60,379.81, 90,606.57 and 38,162.59 is: 57,267.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,379.81 : 90,606.57 = 38,162.59 : x
  2. Step 2: Convert to fraction form
    60,379.81/90,606.57 = 38,162.59/x
  3. Step 3: Cross multiply
    60,379.81x = 90,606.57 × 38,162.59
  4. Step 4: Simplify right side
    60,379.81x = 3,457,781,382.22
  5. Step 5: Solve for x
    x = 3,457,781,382.22/60,379.81
  6. Step 6: Final answer
    x = 57,267.18

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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.