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Finding the Fourth Proportional to 223,540.74, 308,492.01 and 121,572.54

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Solution

The fourth proportional to 223,540.74, 308,492.01 and 121,572.54 is: 167,773.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,540.74 : 308,492.01 = 121,572.54 : x
  2. Step 2: Convert to fraction form
    223,540.74/308,492.01 = 121,572.54/x
  3. Step 3: Cross multiply
    223,540.74x = 308,492.01 × 121,572.54
  4. Step 4: Simplify right side
    223,540.74x = 37,504,157,225.41
  5. Step 5: Solve for x
    x = 37,504,157,225.41/223,540.74
  6. Step 6: Final answer
    x = 167,773.25

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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.