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Finding the Fourth Proportional to 159,651.45, 220,307.73 and 88,029.95

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Solution

The fourth proportional to 159,651.45, 220,307.73 and 88,029.95 is: 121,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,651.45 : 220,307.73 = 88,029.95 : x
  2. Step 2: Convert to fraction form
    159,651.45/220,307.73 = 88,029.95/x
  3. Step 3: Cross multiply
    159,651.45x = 220,307.73 × 88,029.95
  4. Step 4: Simplify right side
    159,651.45x = 19,393,677,354.97
  5. Step 5: Solve for x
    x = 19,393,677,354.97/159,651.45
  6. Step 6: Final answer
    x = 121,475.11

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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.