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Finding the Fourth Proportional to 223,034.63, 307,788.09 and 121,060.11

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Solution

The fourth proportional to 223,034.63, 307,788.09 and 121,060.11 is: 167,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,034.63 : 307,788.09 = 121,060.11 : x
  2. Step 2: Convert to fraction form
    223,034.63/307,788.09 = 121,060.11/x
  3. Step 3: Cross multiply
    223,034.63x = 307,788.09 × 121,060.11
  4. Step 4: Simplify right side
    223,034.63x = 37,260,859,001.01
  5. Step 5: Solve for x
    x = 37,260,859,001.01/223,034.63
  6. Step 6: Final answer
    x = 167,063.11

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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.