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Finding the Fourth Proportional to 159,783.26, 220,505.51 and 88,167.90

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Solution

The fourth proportional to 159,783.26, 220,505.51 and 88,167.90 is: 121,674.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,783.26 : 220,505.51 = 88,167.90 : x
  2. Step 2: Convert to fraction form
    159,783.26/220,505.51 = 88,167.90/x
  3. Step 3: Cross multiply
    159,783.26x = 220,505.51 × 88,167.90
  4. Step 4: Simplify right side
    159,783.26x = 19,441,507,755.13
  5. Step 5: Solve for x
    x = 19,441,507,755.13/159,783.26
  6. Step 6: Final answer
    x = 121,674.25

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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.