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Finding the Fourth Proportional to 223,003.80, 307,739.93 and 121,024.89

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Solution

The fourth proportional to 223,003.80, 307,739.93 and 121,024.89 is: 167,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,003.80 : 307,739.93 = 121,024.89 : x
  2. Step 2: Convert to fraction form
    223,003.80/307,739.93 = 121,024.89/x
  3. Step 3: Cross multiply
    223,003.80x = 307,739.93 × 121,024.89
  4. Step 4: Simplify right side
    223,003.80x = 37,244,190,571.73
  5. Step 5: Solve for x
    x = 37,244,190,571.73/223,003.80
  6. Step 6: Final answer
    x = 167,011.46

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1.5x scale

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.