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Finding the Fourth Proportional to 108,326, 149,488.62 and 60,578.90

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Solution

The fourth proportional to 108,326, 149,488.62 and 60,578.90 is: 83,598.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,326 : 149,488.62 = 60,578.90 : x
  2. Step 2: Convert to fraction form
    108,326/149,488.62 = 60,578.90/x
  3. Step 3: Cross multiply
    108,326x = 149,488.62 × 60,578.90
  4. Step 4: Simplify right side
    108,326x = 9,055,856,162.12
  5. Step 5: Solve for x
    x = 9,055,856,162.12/108,326
  6. Step 6: Final answer
    x = 83,598.18

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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.