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Finding the Fourth Proportional to 224,068.78, 335,843.16 and 90,783.28

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Solution

The fourth proportional to 224,068.78, 335,843.16 and 90,783.28 is: 136,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,068.78 : 335,843.16 = 90,783.28 : x
  2. Step 2: Convert to fraction form
    224,068.78/335,843.16 = 90,783.28/x
  3. Step 3: Cross multiply
    224,068.78x = 335,843.16 × 90,783.28
  4. Step 4: Simplify right side
    224,068.78x = 30,488,943,630.36
  5. Step 5: Solve for x
    x = 30,488,943,630.36/224,068.78
  6. Step 6: Final answer
    x = 136,069.57

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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.