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Finding the Fourth Proportional to 70,134.68, 105,202.95 and 23,387.57

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Solution

The fourth proportional to 70,134.68, 105,202.95 and 23,387.57 is: 35,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,134.68 : 105,202.95 = 23,387.57 : x
  2. Step 2: Convert to fraction form
    70,134.68/105,202.95 = 23,387.57/x
  3. Step 3: Cross multiply
    70,134.68x = 105,202.95 × 23,387.57
  4. Step 4: Simplify right side
    70,134.68x = 2,460,441,357.33
  5. Step 5: Solve for x
    x = 2,460,441,357.33/70,134.68
  6. Step 6: Final answer
    x = 35,081.67

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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.