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Finding the Fourth Proportional to 86,940.29, 130,346.64 and 27,741.84

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Solution

The fourth proportional to 86,940.29, 130,346.64 and 27,741.84 is: 41,592.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,940.29 : 130,346.64 = 27,741.84 : x
  2. Step 2: Convert to fraction form
    86,940.29/130,346.64 = 27,741.84/x
  3. Step 3: Cross multiply
    86,940.29x = 130,346.64 × 27,741.84
  4. Step 4: Simplify right side
    86,940.29x = 3,616,055,631.42
  5. Step 5: Solve for x
    x = 3,616,055,631.42/86,940.29
  6. Step 6: Final answer
    x = 41,592.41

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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.