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Finding the Fourth Proportional to 194,184.67, 291,390.24 and 81,858.01

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Solution

The fourth proportional to 194,184.67, 291,390.24 and 81,858.01 is: 122,834.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,184.67 : 291,390.24 = 81,858.01 : x
  2. Step 2: Convert to fraction form
    194,184.67/291,390.24 = 81,858.01/x
  3. Step 3: Cross multiply
    194,184.67x = 291,390.24 × 81,858.01
  4. Step 4: Simplify right side
    194,184.67x = 23,852,624,770.53
  5. Step 5: Solve for x
    x = 23,852,624,770.53/194,184.67
  6. Step 6: Final answer
    x = 122,834.75

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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.