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Finding the Fourth Proportional to 70,160.00, 105,281.49 and 25,817.87

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Solution

The fourth proportional to 70,160.00, 105,281.49 and 25,817.87 is: 38,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,160.00 : 105,281.49 = 25,817.87 : x
  2. Step 2: Convert to fraction form
    70,160.00/105,281.49 = 25,817.87/x
  3. Step 3: Cross multiply
    70,160.00x = 105,281.49 × 25,817.87
  4. Step 4: Simplify right side
    70,160.00x = 2,718,143,295.82
  5. Step 5: Solve for x
    x = 2,718,143,295.82/70,160.00
  6. Step 6: Final answer
    x = 38,742.07

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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.