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Finding the Fourth Proportional to 105,912.55, 158,868.75 and 27,026.79

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Solution

The fourth proportional to 105,912.55, 158,868.75 and 27,026.79 is: 40,540.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,912.55 : 158,868.75 = 27,026.79 : x
  2. Step 2: Convert to fraction form
    105,912.55/158,868.75 = 27,026.79/x
  3. Step 3: Cross multiply
    105,912.55x = 158,868.75 × 27,026.79
  4. Step 4: Simplify right side
    105,912.55x = 4,293,712,343.81
  5. Step 5: Solve for x
    x = 4,293,712,343.81/105,912.55
  6. Step 6: Final answer
    x = 40,540.17

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1.5x scale

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.