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Finding the Fourth Proportional to 189,613.97, 284,503.93 and 89,845.37

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Solution

The fourth proportional to 189,613.97, 284,503.93 and 89,845.37 is: 134,807.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,613.97 : 284,503.93 = 89,845.37 : x
  2. Step 2: Convert to fraction form
    189,613.97/284,503.93 = 89,845.37/x
  3. Step 3: Cross multiply
    189,613.97x = 284,503.93 × 89,845.37
  4. Step 4: Simplify right side
    189,613.97x = 25,561,359,210.17
  5. Step 5: Solve for x
    x = 25,561,359,210.17/189,613.97
  6. Step 6: Final answer
    x = 134,807.37

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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.