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Finding the Fourth Proportional to 401,300.11, 601,884.55 and 120,751.75

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Solution

The fourth proportional to 401,300.11, 601,884.55 and 120,751.75 is: 181,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,300.11 : 601,884.55 = 120,751.75 : x
  2. Step 2: Convert to fraction form
    401,300.11/601,884.55 = 120,751.75/x
  3. Step 3: Cross multiply
    401,300.11x = 601,884.55 × 120,751.75
  4. Step 4: Simplify right side
    401,300.11x = 72,678,612,710.46
  5. Step 5: Solve for x
    x = 72,678,612,710.46/401,300.11
  6. Step 6: Final answer
    x = 181,107.88

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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.