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Finding the Fourth Proportional to 223,094.92, 307,871.25 and 121,120.48

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Solution

The fourth proportional to 223,094.92, 307,871.25 and 121,120.48 is: 167,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,094.92 : 307,871.25 = 121,120.48 : x
  2. Step 2: Convert to fraction form
    223,094.92/307,871.25 = 121,120.48/x
  3. Step 3: Cross multiply
    223,094.92x = 307,871.25 × 121,120.48
  4. Step 4: Simplify right side
    223,094.92x = 37,289,513,578.20
  5. Step 5: Solve for x
    x = 37,289,513,578.20/223,094.92
  6. Step 6: Final answer
    x = 167,146.40

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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.