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Finding the Fourth Proportional to 89,812.35, 134,719.74 and 43,054.29

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Solution

The fourth proportional to 89,812.35, 134,719.74 and 43,054.29 is: 64,582.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.35 : 134,719.74 = 43,054.29 : x
  2. Step 2: Convert to fraction form
    89,812.35/134,719.74 = 43,054.29/x
  3. Step 3: Cross multiply
    89,812.35x = 134,719.74 × 43,054.29
  4. Step 4: Simplify right side
    89,812.35x = 5,800,262,754.68
  5. Step 5: Solve for x
    x = 5,800,262,754.68/89,812.35
  6. Step 6: Final answer
    x = 64,582.02

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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.