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Finding the Fourth Proportional to 72,549.84, 108,838.68 and 25,163.10

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Solution

The fourth proportional to 72,549.84, 108,838.68 and 25,163.10 is: 37,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,549.84 : 108,838.68 = 25,163.10 : x
  2. Step 2: Convert to fraction form
    72,549.84/108,838.68 = 25,163.10/x
  3. Step 3: Cross multiply
    72,549.84x = 108,838.68 × 25,163.10
  4. Step 4: Simplify right side
    72,549.84x = 2,738,718,588.71
  5. Step 5: Solve for x
    x = 2,738,718,588.71/72,549.84
  6. Step 6: Final answer
    x = 37,749.48

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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.