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Finding the Fourth Proportional to 74,876.58, 112,259.43 and 35,387.58

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Solution

The fourth proportional to 74,876.58, 112,259.43 and 35,387.58 is: 53,055.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,876.58 : 112,259.43 = 35,387.58 : x
  2. Step 2: Convert to fraction form
    74,876.58/112,259.43 = 35,387.58/x
  3. Step 3: Cross multiply
    74,876.58x = 112,259.43 × 35,387.58
  4. Step 4: Simplify right side
    74,876.58x = 3,972,589,559.88
  5. Step 5: Solve for x
    x = 3,972,589,559.88/74,876.58
  6. Step 6: Final answer
    x = 53,055.17

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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.