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Finding the Fourth Proportional to 91,466.66, 137,022.44 and 67,407.26

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Solution

The fourth proportional to 91,466.66, 137,022.44 and 67,407.26 is: 100,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,466.66 : 137,022.44 = 67,407.26 : x
  2. Step 2: Convert to fraction form
    91,466.66/137,022.44 = 67,407.26/x
  3. Step 3: Cross multiply
    91,466.66x = 137,022.44 × 67,407.26
  4. Step 4: Simplify right side
    91,466.66x = 9,236,307,238.91
  5. Step 5: Solve for x
    x = 9,236,307,238.91/91,466.66
  6. Step 6: Final answer
    x = 100,980.04

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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.