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Finding the Fourth Proportional to 70,119.95, 105,096.27 and 40,475.15

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Solution

The fourth proportional to 70,119.95, 105,096.27 and 40,475.15 is: 60,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,119.95 : 105,096.27 = 40,475.15 : x
  2. Step 2: Convert to fraction form
    70,119.95/105,096.27 = 40,475.15/x
  3. Step 3: Cross multiply
    70,119.95x = 105,096.27 × 40,475.15
  4. Step 4: Simplify right side
    70,119.95x = 4,253,787,292.69
  5. Step 5: Solve for x
    x = 4,253,787,292.69/70,119.95
  6. Step 6: Final answer
    x = 60,664.44

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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.