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Finding the Fourth Proportional to 223,322.66, 308,184.60 and 121,348.43

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Solution

The fourth proportional to 223,322.66, 308,184.60 and 121,348.43 is: 167,460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,322.66 : 308,184.60 = 121,348.43 : x
  2. Step 2: Convert to fraction form
    223,322.66/308,184.60 = 121,348.43/x
  3. Step 3: Cross multiply
    223,322.66x = 308,184.60 × 121,348.43
  4. Step 4: Simplify right side
    223,322.66x = 37,397,717,138.14
  5. Step 5: Solve for x
    x = 37,397,717,138.14/223,322.66
  6. Step 6: Final answer
    x = 167,460.47

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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.