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Finding the Fourth Proportional to 194,549.40, 291,791.30 and 74,548.71

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Solution

The fourth proportional to 194,549.40, 291,791.30 and 74,548.71 is: 111,810.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,549.40 : 291,791.30 = 74,548.71 : x
  2. Step 2: Convert to fraction form
    194,549.40/291,791.30 = 74,548.71/x
  3. Step 3: Cross multiply
    194,549.40x = 291,791.30 × 74,548.71
  4. Step 4: Simplify right side
    194,549.40x = 21,752,664,631.48
  5. Step 5: Solve for x
    x = 21,752,664,631.48/194,549.40
  6. Step 6: Final answer
    x = 111,810.49

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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.