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Finding the Fourth Proportional to 368,431.80, 552,647.70 and 181,404.60

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Solution

The fourth proportional to 368,431.80, 552,647.70 and 181,404.60 is: 272,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,431.80 : 552,647.70 = 181,404.60 : x
  2. Step 2: Convert to fraction form
    368,431.80/552,647.70 = 181,404.60/x
  3. Step 3: Cross multiply
    368,431.80x = 552,647.70 × 181,404.60
  4. Step 4: Simplify right side
    368,431.80x = 100,252,834,959.42
  5. Step 5: Solve for x
    x = 100,252,834,959.42/368,431.80
  6. Step 6: Final answer
    x = 272,106.90

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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.