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Finding the Fourth Proportional to 117,571.68, 176,320.26 and 38,664.72

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Solution

The fourth proportional to 117,571.68, 176,320.26 and 38,664.72 is: 57,984.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,571.68 : 176,320.26 = 38,664.72 : x
  2. Step 2: Convert to fraction form
    117,571.68/176,320.26 = 38,664.72/x
  3. Step 3: Cross multiply
    117,571.68x = 176,320.26 × 38,664.72
  4. Step 4: Simplify right side
    117,571.68x = 6,817,373,483.23
  5. Step 5: Solve for x
    x = 6,817,373,483.23/117,571.68
  6. Step 6: Final answer
    x = 57,984.83

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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.