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Finding the Fourth Proportional to 157,773.80, 217,729.03 and 89,795.95

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Solution

The fourth proportional to 157,773.80, 217,729.03 and 89,795.95 is: 123,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,773.80 : 217,729.03 = 89,795.95 : x
  2. Step 2: Convert to fraction form
    157,773.80/217,729.03 = 89,795.95/x
  3. Step 3: Cross multiply
    157,773.80x = 217,729.03 × 89,795.95
  4. Step 4: Simplify right side
    157,773.80x = 19,551,185,091.43
  5. Step 5: Solve for x
    x = 19,551,185,091.43/157,773.80
  6. Step 6: Final answer
    x = 123,919.09

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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.