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Finding the Fourth Proportional to 223,092.41, 307,867.91 and 121,118.00

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Solution

The fourth proportional to 223,092.41, 307,867.91 and 121,118.00 is: 167,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,092.41 : 307,867.91 = 121,118.00 : x
  2. Step 2: Convert to fraction form
    223,092.41/307,867.91 = 121,118.00/x
  3. Step 3: Cross multiply
    223,092.41x = 307,867.91 × 121,118.00
  4. Step 4: Simplify right side
    223,092.41x = 37,288,343,378.45
  5. Step 5: Solve for x
    x = 37,288,343,378.45/223,092.41
  6. Step 6: Final answer
    x = 167,143.04

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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.