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Finding the Fourth Proportional to 117,315.51, 175,971.44 and 28,568.87

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Solution

The fourth proportional to 117,315.51, 175,971.44 and 28,568.87 is: 42,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,315.51 : 175,971.44 = 28,568.87 : x
  2. Step 2: Convert to fraction form
    117,315.51/175,971.44 = 28,568.87/x
  3. Step 3: Cross multiply
    117,315.51x = 175,971.44 × 28,568.87
  4. Step 4: Simplify right side
    117,315.51x = 5,027,304,170.37
  5. Step 5: Solve for x
    x = 5,027,304,170.37/117,315.51
  6. Step 6: Final answer
    x = 42,852.85

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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.