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Finding the Fourth Proportional to 79,568.67, 119,328.60 and 26,250.81

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Solution

The fourth proportional to 79,568.67, 119,328.60 and 26,250.81 is: 39,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,568.67 : 119,328.60 = 26,250.81 : x
  2. Step 2: Convert to fraction form
    79,568.67/119,328.60 = 26,250.81/x
  3. Step 3: Cross multiply
    79,568.67x = 119,328.60 × 26,250.81
  4. Step 4: Simplify right side
    79,568.67x = 3,132,472,406.17
  5. Step 5: Solve for x
    x = 3,132,472,406.17/79,568.67
  6. Step 6: Final answer
    x = 39,368.16

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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.