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Finding the Fourth Proportional to 401,050.20, 601,661.70 and 120,595.80

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Solution

The fourth proportional to 401,050.20, 601,661.70 and 120,595.80 is: 180,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,050.20 : 601,661.70 = 120,595.80 : x
  2. Step 2: Convert to fraction form
    401,050.20/601,661.70 = 120,595.80/x
  3. Step 3: Cross multiply
    401,050.20x = 601,661.70 × 120,595.80
  4. Step 4: Simplify right side
    401,050.20x = 72,557,874,040.86
  5. Step 5: Solve for x
    x = 72,557,874,040.86/401,050.20
  6. Step 6: Final answer
    x = 180,919.68

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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.