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Finding the Fourth Proportional to 222,062, 306,445.56 and 121,460

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Solution

The fourth proportional to 222,062, 306,445.56 and 121,460 is: 167,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,062 : 306,445.56 = 121,460 : x
  2. Step 2: Convert to fraction form
    222,062/306,445.56 = 121,460/x
  3. Step 3: Cross multiply
    222,062x = 306,445.56 × 121,460
  4. Step 4: Simplify right side
    222,062x = 37,220,877,717.60
  5. Step 5: Solve for x
    x = 37,220,877,717.60/222,062
  6. Step 6: Final answer
    x = 167,614.80

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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.