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Finding the Fourth Proportional to 224,488.36, 309,795.78 and 122,514.64

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Solution

The fourth proportional to 224,488.36, 309,795.78 and 122,514.64 is: 169,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,488.36 : 309,795.78 = 122,514.64 : x
  2. Step 2: Convert to fraction form
    224,488.36/309,795.78 = 122,514.64/x
  3. Step 3: Cross multiply
    224,488.36x = 309,795.78 × 122,514.64
  4. Step 4: Simplify right side
    224,488.36x = 37,954,518,460.22
  5. Step 5: Solve for x
    x = 37,954,518,460.22/224,488.36
  6. Step 6: Final answer
    x = 169,071.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.