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Finding the Fourth Proportional to 70,235.73, 105,364.08 and 25,859.07

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Solution

The fourth proportional to 70,235.73, 105,364.08 and 25,859.07 is: 38,792.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,235.73 : 105,364.08 = 25,859.07 : x
  2. Step 2: Convert to fraction form
    70,235.73/105,364.08 = 25,859.07/x
  3. Step 3: Cross multiply
    70,235.73x = 105,364.08 × 25,859.07
  4. Step 4: Simplify right side
    70,235.73x = 2,724,617,120.21
  5. Step 5: Solve for x
    x = 2,724,617,120.21/70,235.73
  6. Step 6: Final answer
    x = 38,792.47

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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.