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Finding the Fourth Proportional to 368,373, 552,438 and 118,996.68

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Solution

The fourth proportional to 368,373, 552,438 and 118,996.68 is: 178,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,373 : 552,438 = 118,996.68 : x
  2. Step 2: Convert to fraction form
    368,373/552,438 = 118,996.68/x
  3. Step 3: Cross multiply
    368,373x = 552,438 × 118,996.68
  4. Step 4: Simplify right side
    368,373x = 65,738,287,905.84
  5. Step 5: Solve for x
    x = 65,738,287,905.84/368,373
  6. Step 6: Final answer
    x = 178,455.77

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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.