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Finding the Fourth Proportional to 368,178.90, 552,269.70 and 112,013.97

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Solution

The fourth proportional to 368,178.90, 552,269.70 and 112,013.97 is: 168,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,178.90 : 552,269.70 = 112,013.97 : x
  2. Step 2: Convert to fraction form
    368,178.90/552,269.70 = 112,013.97/x
  3. Step 3: Cross multiply
    368,178.90x = 552,269.70 × 112,013.97
  4. Step 4: Simplify right side
    368,178.90x = 61,861,921,607.71
  5. Step 5: Solve for x
    x = 61,861,921,607.71/368,178.90
  6. Step 6: Final answer
    x = 168,021.37

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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.