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Finding the Fourth Proportional to 70,264.86, 105,303.71 and 25,850.54

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Solution

The fourth proportional to 70,264.86, 105,303.71 and 25,850.54 is: 38,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,264.86 : 105,303.71 = 25,850.54 : x
  2. Step 2: Convert to fraction form
    70,264.86/105,303.71 = 25,850.54/x
  3. Step 3: Cross multiply
    70,264.86x = 105,303.71 × 25,850.54
  4. Step 4: Simplify right side
    70,264.86x = 2,722,157,111.73
  5. Step 5: Solve for x
    x = 2,722,157,111.73/70,264.86
  6. Step 6: Final answer
    x = 38,741.37

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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.