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Finding the Fourth Proportional to 157,640.87, 236,458.82 and 73,353.89

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Solution

The fourth proportional to 157,640.87, 236,458.82 and 73,353.89 is: 110,029.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,640.87 : 236,458.82 = 73,353.89 : x
  2. Step 2: Convert to fraction form
    157,640.87/236,458.82 = 73,353.89/x
  3. Step 3: Cross multiply
    157,640.87x = 236,458.82 × 73,353.89
  4. Step 4: Simplify right side
    157,640.87x = 17,345,173,905.04
  5. Step 5: Solve for x
    x = 17,345,173,905.04/157,640.87
  6. Step 6: Final answer
    x = 110,029.68

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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.