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Finding the Fourth Proportional to 97,231.78, 145,847.70 and 23,359.78

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Solution

The fourth proportional to 97,231.78, 145,847.70 and 23,359.78 is: 35,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,231.78 : 145,847.70 = 23,359.78 : x
  2. Step 2: Convert to fraction form
    97,231.78/145,847.70 = 23,359.78/x
  3. Step 3: Cross multiply
    97,231.78x = 145,847.70 × 23,359.78
  4. Step 4: Simplify right side
    97,231.78x = 3,406,970,185.51
  5. Step 5: Solve for x
    x = 3,406,970,185.51/97,231.78
  6. Step 6: Final answer
    x = 35,039.68

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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.