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Finding the Fourth Proportional to 117,291.24, 175,936.32 and 28,544.40

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Solution

The fourth proportional to 117,291.24, 175,936.32 and 28,544.40 is: 42,816.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,291.24 : 175,936.32 = 28,544.40 : x
  2. Step 2: Convert to fraction form
    117,291.24/175,936.32 = 28,544.40/x
  3. Step 3: Cross multiply
    117,291.24x = 175,936.32 × 28,544.40
  4. Step 4: Simplify right side
    117,291.24x = 5,021,996,692.61
  5. Step 5: Solve for x
    x = 5,021,996,692.61/117,291.24
  6. Step 6: Final answer
    x = 42,816.47

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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.