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Finding the Fourth Proportional to 86,185.84, 129,399.81 and 44,096.10

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Solution

The fourth proportional to 86,185.84, 129,399.81 and 44,096.10 is: 66,206.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,185.84 : 129,399.81 = 44,096.10 : x
  2. Step 2: Convert to fraction form
    86,185.84/129,399.81 = 44,096.10/x
  3. Step 3: Cross multiply
    86,185.84x = 129,399.81 × 44,096.10
  4. Step 4: Simplify right side
    86,185.84x = 5,706,026,961.74
  5. Step 5: Solve for x
    x = 5,706,026,961.74/86,185.84
  6. Step 6: Final answer
    x = 66,206.08

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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.