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Finding the Fourth Proportional to 117,322.80, 175,984.56 and 28,576.32

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Solution

The fourth proportional to 117,322.80, 175,984.56 and 28,576.32 is: 42,864.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,322.80 : 175,984.56 = 28,576.32 : x
  2. Step 2: Convert to fraction form
    117,322.80/175,984.56 = 28,576.32/x
  3. Step 3: Cross multiply
    117,322.80x = 175,984.56 × 28,576.32
  4. Step 4: Simplify right side
    117,322.80x = 5,028,991,101.62
  5. Step 5: Solve for x
    x = 5,028,991,101.62/117,322.80
  6. Step 6: Final answer
    x = 42,864.57

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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.