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Finding the Fourth Proportional to 368,002.80, 551,712.60 and 201,790.80

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Solution

The fourth proportional to 368,002.80, 551,712.60 and 201,790.80 is: 302,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,002.80 : 551,712.60 = 201,790.80 : x
  2. Step 2: Convert to fraction form
    368,002.80/551,712.60 = 201,790.80/x
  3. Step 3: Cross multiply
    368,002.80x = 551,712.60 × 201,790.80
  4. Step 4: Simplify right side
    368,002.80x = 111,330,526,924.08
  5. Step 5: Solve for x
    x = 111,330,526,924.08/368,002.80
  6. Step 6: Final answer
    x = 302,526.30

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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.