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Finding the Fourth Proportional to 159,809.94, 220,537.50 and 88,189.98

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Solution

The fourth proportional to 159,809.94, 220,537.50 and 88,189.98 is: 121,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,809.94 : 220,537.50 = 88,189.98 : x
  2. Step 2: Convert to fraction form
    159,809.94/220,537.50 = 88,189.98/x
  3. Step 3: Cross multiply
    159,809.94x = 220,537.50 × 88,189.98
  4. Step 4: Simplify right side
    159,809.94x = 19,449,197,714.25
  5. Step 5: Solve for x
    x = 19,449,197,714.25/159,809.94
  6. Step 6: Final answer
    x = 121,702.05

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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.