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Finding the Fourth Proportional to 70,400.56, 105,599.86 and 17,092.94

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Solution

The fourth proportional to 70,400.56, 105,599.86 and 17,092.94 is: 25,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.56 : 105,599.86 = 17,092.94 : x
  2. Step 2: Convert to fraction form
    70,400.56/105,599.86 = 17,092.94/x
  3. Step 3: Cross multiply
    70,400.56x = 105,599.86 × 17,092.94
  4. Step 4: Simplify right side
    70,400.56x = 1,805,012,437.19
  5. Step 5: Solve for x
    x = 1,805,012,437.19/70,400.56
  6. Step 6: Final answer
    x = 25,639.18

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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.