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Finding the Fourth Proportional to 145,891.26, 218,214.81 and 89,593.02

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Solution

The fourth proportional to 145,891.26, 218,214.81 and 89,593.02 is: 134,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,891.26 : 218,214.81 = 89,593.02 : x
  2. Step 2: Convert to fraction form
    145,891.26/218,214.81 = 89,593.02/x
  3. Step 3: Cross multiply
    145,891.26x = 218,214.81 × 89,593.02
  4. Step 4: Simplify right side
    145,891.26x = 19,550,523,836.63
  5. Step 5: Solve for x
    x = 19,550,523,836.63/145,891.26
  6. Step 6: Final answer
    x = 134,007.51

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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.