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Finding the Fourth Proportional to 99,296.73, 137,028.45 and 73,916.60

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Solution

The fourth proportional to 99,296.73, 137,028.45 and 73,916.60 is: 102,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,296.73 : 137,028.45 = 73,916.60 : x
  2. Step 2: Convert to fraction form
    99,296.73/137,028.45 = 73,916.60/x
  3. Step 3: Cross multiply
    99,296.73x = 137,028.45 × 73,916.60
  4. Step 4: Simplify right side
    99,296.73x = 10,128,676,442.13
  5. Step 5: Solve for x
    x = 10,128,676,442.13/99,296.73
  6. Step 6: Final answer
    x = 102,004.13

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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.