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Finding the Fourth Proportional to 153,791.04, 230,723.82 and 74,887.32

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Solution

The fourth proportional to 153,791.04, 230,723.82 and 74,887.32 is: 112,349.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,791.04 : 230,723.82 = 74,887.32 : x
  2. Step 2: Convert to fraction form
    153,791.04/230,723.82 = 74,887.32/x
  3. Step 3: Cross multiply
    153,791.04x = 230,723.82 × 74,887.32
  4. Step 4: Simplify right side
    153,791.04x = 17,278,288,539.96
  5. Step 5: Solve for x
    x = 17,278,288,539.96/153,791.04
  6. Step 6: Final answer
    x = 112,349.12

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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.