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Finding the Fourth Proportional to 70,400.41, 105,599.66 and 17,092.81

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Solution

The fourth proportional to 70,400.41, 105,599.66 and 17,092.81 is: 25,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.41 : 105,599.66 = 17,092.81 : x
  2. Step 2: Convert to fraction form
    70,400.41/105,599.66 = 17,092.81/x
  3. Step 3: Cross multiply
    70,400.41x = 105,599.66 × 17,092.81
  4. Step 4: Simplify right side
    70,400.41x = 1,804,994,924.44
  5. Step 5: Solve for x
    x = 1,804,994,924.44/70,400.41
  6. Step 6: Final answer
    x = 25,638.98

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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.