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Finding the Fourth Proportional to 301,329.84, 451,981.80 and 90,961.50

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Solution

The fourth proportional to 301,329.84, 451,981.80 and 90,961.50 is: 136,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,329.84 : 451,981.80 = 90,961.50 : x
  2. Step 2: Convert to fraction form
    301,329.84/451,981.80 = 90,961.50/x
  3. Step 3: Cross multiply
    301,329.84x = 451,981.80 × 90,961.50
  4. Step 4: Simplify right side
    301,329.84x = 41,112,942,500.70
  5. Step 5: Solve for x
    x = 41,112,942,500.70/301,329.84
  6. Step 6: Final answer
    x = 136,438.34

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.