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Finding the Fourth Proportional to 223,461.96, 308,383.58 and 121,494.28

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Solution

The fourth proportional to 223,461.96, 308,383.58 and 121,494.28 is: 167,665.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,461.96 : 308,383.58 = 121,494.28 : x
  2. Step 2: Convert to fraction form
    223,461.96/308,383.58 = 121,494.28/x
  3. Step 3: Cross multiply
    223,461.96x = 308,383.58 × 121,494.28
  4. Step 4: Simplify right side
    223,461.96x = 37,466,841,015.92
  5. Step 5: Solve for x
    x = 37,466,841,015.92/223,461.96
  6. Step 6: Final answer
    x = 167,665.41

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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.