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Finding the Fourth Proportional to 204,700.80, 307,051.20 and 151,556.70

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Solution

The fourth proportional to 204,700.80, 307,051.20 and 151,556.70 is: 227,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,700.80 : 307,051.20 = 151,556.70 : x
  2. Step 2: Convert to fraction form
    204,700.80/307,051.20 = 151,556.70/x
  3. Step 3: Cross multiply
    204,700.80x = 307,051.20 × 151,556.70
  4. Step 4: Simplify right side
    204,700.80x = 46,535,666,603.04
  5. Step 5: Solve for x
    x = 46,535,666,603.04/204,700.80
  6. Step 6: Final answer
    x = 227,335.05

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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.