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Finding the Fourth Proportional to 242,668.98, 364,004.43 and 74,188.68

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Solution

The fourth proportional to 242,668.98, 364,004.43 and 74,188.68 is: 111,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,668.98 : 364,004.43 = 74,188.68 : x
  2. Step 2: Convert to fraction form
    242,668.98/364,004.43 = 74,188.68/x
  3. Step 3: Cross multiply
    242,668.98x = 364,004.43 × 74,188.68
  4. Step 4: Simplify right side
    242,668.98x = 27,005,008,175.85
  5. Step 5: Solve for x
    x = 27,005,008,175.85/242,668.98
  6. Step 6: Final answer
    x = 111,283.31

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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.