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Finding the Fourth Proportional to 199,557.54, 275,389.74 and 108,913.68

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Solution

The fourth proportional to 199,557.54, 275,389.74 and 108,913.68 is: 150,301.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,557.54 : 275,389.74 = 108,913.68 : x
  2. Step 2: Convert to fraction form
    199,557.54/275,389.74 = 108,913.68/x
  3. Step 3: Cross multiply
    199,557.54x = 275,389.74 × 108,913.68
  4. Step 4: Simplify right side
    199,557.54x = 29,993,710,017.64
  5. Step 5: Solve for x
    x = 29,993,710,017.64/199,557.54
  6. Step 6: Final answer
    x = 150,301.06

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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.