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Finding the Fourth Proportional to 118,418.24, 177,697.38 and 43,590.94

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Solution

The fourth proportional to 118,418.24, 177,697.38 and 43,590.94 is: 65,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,418.24 : 177,697.38 = 43,590.94 : x
  2. Step 2: Convert to fraction form
    118,418.24/177,697.38 = 43,590.94/x
  3. Step 3: Cross multiply
    118,418.24x = 177,697.38 × 43,590.94
  4. Step 4: Simplify right side
    118,418.24x = 7,745,995,829.74
  5. Step 5: Solve for x
    x = 7,745,995,829.74/118,418.24
  6. Step 6: Final answer
    x = 65,412.19

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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.