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Finding the Fourth Proportional to 70,241.86, 105,313.47 and 25,862.95

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Solution

The fourth proportional to 70,241.86, 105,313.47 and 25,862.95 is: 38,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,241.86 : 105,313.47 = 25,862.95 : x
  2. Step 2: Convert to fraction form
    70,241.86/105,313.47 = 25,862.95/x
  3. Step 3: Cross multiply
    70,241.86x = 105,313.47 × 25,862.95
  4. Step 4: Simplify right side
    70,241.86x = 2,723,717,008.94
  5. Step 5: Solve for x
    x = 2,723,717,008.94/70,241.86
  6. Step 6: Final answer
    x = 38,776.27

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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.