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Finding the Fourth Proportional to 368,047.80, 551,780.10 and 201,835.80

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Solution

The fourth proportional to 368,047.80, 551,780.10 and 201,835.80 is: 302,593.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,047.80 : 551,780.10 = 201,835.80 : x
  2. Step 2: Convert to fraction form
    368,047.80/551,780.10 = 201,835.80/x
  3. Step 3: Cross multiply
    368,047.80x = 551,780.10 × 201,835.80
  4. Step 4: Simplify right side
    368,047.80x = 111,368,977,907.58
  5. Step 5: Solve for x
    x = 111,368,977,907.58/368,047.80
  6. Step 6: Final answer
    x = 302,593.79

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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.