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Finding the Fourth Proportional to 194,172.70, 291,268.65 and 100,860.70

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Solution

The fourth proportional to 194,172.70, 291,268.65 and 100,860.70 is: 151,296.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,172.70 : 291,268.65 = 100,860.70 : x
  2. Step 2: Convert to fraction form
    194,172.70/291,268.65 = 100,860.70/x
  3. Step 3: Cross multiply
    194,172.70x = 291,268.65 × 100,860.70
  4. Step 4: Simplify right side
    194,172.70x = 29,377,559,927.06
  5. Step 5: Solve for x
    x = 29,377,559,927.06/194,172.70
  6. Step 6: Final answer
    x = 151,296.04

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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.