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Finding the Fourth Proportional to 108,391.67, 149,588.07 and 62,464.67

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Solution

The fourth proportional to 108,391.67, 149,588.07 and 62,464.67 is: 86,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,391.67 : 149,588.07 = 62,464.67 : x
  2. Step 2: Convert to fraction form
    108,391.67/149,588.07 = 62,464.67/x
  3. Step 3: Cross multiply
    108,391.67x = 149,588.07 × 62,464.67
  4. Step 4: Simplify right side
    108,391.67x = 9,343,969,007.26
  5. Step 5: Solve for x
    x = 9,343,969,007.26/108,391.67
  6. Step 6: Final answer
    x = 86,205.60

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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.