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Finding the Fourth Proportional to 74,791.02, 112,173.57 and 19,387.02

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Solution

The fourth proportional to 74,791.02, 112,173.57 and 19,387.02 is: 29,077.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.02 : 112,173.57 = 19,387.02 : x
  2. Step 2: Convert to fraction form
    74,791.02/112,173.57 = 19,387.02/x
  3. Step 3: Cross multiply
    74,791.02x = 112,173.57 × 19,387.02
  4. Step 4: Simplify right side
    74,791.02x = 2,174,711,245.06
  5. Step 5: Solve for x
    x = 2,174,711,245.06/74,791.02
  6. Step 6: Final answer
    x = 29,077.17

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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.