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Finding the Fourth Proportional to 70,353.36, 105,501.69 and 25,361.91

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Solution

The fourth proportional to 70,353.36, 105,501.69 and 25,361.91 is: 38,032.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,353.36 : 105,501.69 = 25,361.91 : x
  2. Step 2: Convert to fraction form
    70,353.36/105,501.69 = 25,361.91/x
  3. Step 3: Cross multiply
    70,353.36x = 105,501.69 × 25,361.91
  4. Step 4: Simplify right side
    70,353.36x = 2,675,724,366.63
  5. Step 5: Solve for x
    x = 2,675,724,366.63/70,353.36
  6. Step 6: Final answer
    x = 38,032.65

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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.