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Finding the Fourth Proportional to 70,150.15, 105,162.96 and 25,766.51

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Solution

The fourth proportional to 70,150.15, 105,162.96 and 25,766.51 is: 38,626.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,150.15 : 105,162.96 = 25,766.51 : x
  2. Step 2: Convert to fraction form
    70,150.15/105,162.96 = 25,766.51/x
  3. Step 3: Cross multiply
    70,150.15x = 105,162.96 × 25,766.51
  4. Step 4: Simplify right side
    70,150.15x = 2,709,681,886.34
  5. Step 5: Solve for x
    x = 2,709,681,886.34/70,150.15
  6. Step 6: Final answer
    x = 38,626.89

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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.