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Finding the Fourth Proportional to 75,370.70, 112,997.72 and 43,732.10

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Solution

The fourth proportional to 75,370.70, 112,997.72 and 43,732.10 is: 65,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,370.70 : 112,997.72 = 43,732.10 : x
  2. Step 2: Convert to fraction form
    75,370.70/112,997.72 = 43,732.10/x
  3. Step 3: Cross multiply
    75,370.70x = 112,997.72 × 43,732.10
  4. Step 4: Simplify right side
    75,370.70x = 4,941,627,590.81
  5. Step 5: Solve for x
    x = 4,941,627,590.81/75,370.70
  6. Step 6: Final answer
    x = 65,564.31

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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.