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Finding the Fourth Proportional to 117,383.52, 176,075.28 and 28,636.43

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Solution

The fourth proportional to 117,383.52, 176,075.28 and 28,636.43 is: 42,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,383.52 : 176,075.28 = 28,636.43 : x
  2. Step 2: Convert to fraction form
    117,383.52/176,075.28 = 28,636.43/x
  3. Step 3: Cross multiply
    117,383.52x = 176,075.28 × 28,636.43
  4. Step 4: Simplify right side
    117,383.52x = 5,042,166,550.07
  5. Step 5: Solve for x
    x = 5,042,166,550.07/117,383.52
  6. Step 6: Final answer
    x = 42,954.64

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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.