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Finding the Fourth Proportional to 117,243.43, 175,863.61 and 28,496.68

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Solution

The fourth proportional to 117,243.43, 175,863.61 and 28,496.68 is: 42,744.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,243.43 : 175,863.61 = 28,496.68 : x
  2. Step 2: Convert to fraction form
    117,243.43/175,863.61 = 28,496.68/x
  3. Step 3: Cross multiply
    117,243.43x = 175,863.61 × 28,496.68
  4. Step 4: Simplify right side
    117,243.43x = 5,011,529,017.81
  5. Step 5: Solve for x
    x = 5,011,529,017.81/117,243.43
  6. Step 6: Final answer
    x = 42,744.65

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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.