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Finding the Fourth Proportional to 202,087.71, 303,131.57 and 89,741.52

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Solution

The fourth proportional to 202,087.71, 303,131.57 and 89,741.52 is: 134,612.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,087.71 : 303,131.57 = 89,741.52 : x
  2. Step 2: Convert to fraction form
    202,087.71/303,131.57 = 89,741.52/x
  3. Step 3: Cross multiply
    202,087.71x = 303,131.57 × 89,741.52
  4. Step 4: Simplify right side
    202,087.71x = 27,203,487,403.08
  5. Step 5: Solve for x
    x = 27,203,487,403.08/202,087.71
  6. Step 6: Final answer
    x = 134,612.28

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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.