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Finding the Fourth Proportional to 223,460.88, 308,378.52 and 121,486.20

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Solution

The fourth proportional to 223,460.88, 308,378.52 and 121,486.20 is: 167,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,460.88 : 308,378.52 = 121,486.20 : x
  2. Step 2: Convert to fraction form
    223,460.88/308,378.52 = 121,486.20/x
  3. Step 3: Cross multiply
    223,460.88x = 308,378.52 × 121,486.20
  4. Step 4: Simplify right side
    223,460.88x = 37,463,734,556.42
  5. Step 5: Solve for x
    x = 37,463,734,556.42/223,460.88
  6. Step 6: Final answer
    x = 167,652.32

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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.