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Finding the Fourth Proportional to 522,131.88, 783,198.42 and 143,055.90

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Solution

The fourth proportional to 522,131.88, 783,198.42 and 143,055.90 is: 214,584.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,131.88 : 783,198.42 = 143,055.90 : x
  2. Step 2: Convert to fraction form
    522,131.88/783,198.42 = 143,055.90/x
  3. Step 3: Cross multiply
    522,131.88x = 783,198.42 × 143,055.90
  4. Step 4: Simplify right side
    522,131.88x = 112,041,154,851.68
  5. Step 5: Solve for x
    x = 112,041,154,851.68/522,131.88
  6. Step 6: Final answer
    x = 214,584.01

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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.