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Finding the Fourth Proportional to 303,201.18, 454,799.97 and 78,561.06

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Solution

The fourth proportional to 303,201.18, 454,799.97 and 78,561.06 is: 117,841.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,201.18 : 454,799.97 = 78,561.06 : x
  2. Step 2: Convert to fraction form
    303,201.18/454,799.97 = 78,561.06/x
  3. Step 3: Cross multiply
    303,201.18x = 454,799.97 × 78,561.06
  4. Step 4: Simplify right side
    303,201.18x = 35,729,567,731.17
  5. Step 5: Solve for x
    x = 35,729,567,731.17/303,201.18
  6. Step 6: Final answer
    x = 117,841.12

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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.