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Finding the Fourth Proportional to 201,487.02, 278,057.08 and 110,845.43

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Solution

The fourth proportional to 201,487.02, 278,057.08 and 110,845.43 is: 152,969.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,487.02 : 278,057.08 = 110,845.43 : x
  2. Step 2: Convert to fraction form
    201,487.02/278,057.08 = 110,845.43/x
  3. Step 3: Cross multiply
    201,487.02x = 278,057.08 × 110,845.43
  4. Step 4: Simplify right side
    201,487.02x = 30,821,356,597.14
  5. Step 5: Solve for x
    x = 30,821,356,597.14/201,487.02
  6. Step 6: Final answer
    x = 152,969.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.