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Finding the Fourth Proportional to 117,290.80, 175,936.56 and 28,544.32

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Solution

The fourth proportional to 117,290.80, 175,936.56 and 28,544.32 is: 42,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.80 : 175,936.56 = 28,544.32 : x
  2. Step 2: Convert to fraction form
    117,290.80/175,936.56 = 28,544.32/x
  3. Step 3: Cross multiply
    117,290.80x = 175,936.56 × 28,544.32
  4. Step 4: Simplify right side
    117,290.80x = 5,021,989,468.34
  5. Step 5: Solve for x
    x = 5,021,989,468.34/117,290.80
  6. Step 6: Final answer
    x = 42,816.57

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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.