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Finding the Fourth Proportional to 106,199.40, 159,320.88 and 88,790.88

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Solution

The fourth proportional to 106,199.40, 159,320.88 and 88,790.88 is: 133,204.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,199.40 : 159,320.88 = 88,790.88 : x
  2. Step 2: Convert to fraction form
    106,199.40/159,320.88 = 88,790.88/x
  3. Step 3: Cross multiply
    106,199.40x = 159,320.88 × 88,790.88
  4. Step 4: Simplify right side
    106,199.40x = 14,146,241,137.57
  5. Step 5: Solve for x
    x = 14,146,241,137.57/106,199.40
  6. Step 6: Final answer
    x = 133,204.53

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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.