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Finding the Fourth Proportional to 235,720.72, 325,301.92 and 133,750.48

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Solution

The fourth proportional to 235,720.72, 325,301.92 and 133,750.48 is: 184,579.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,720.72 : 325,301.92 = 133,750.48 : x
  2. Step 2: Convert to fraction form
    235,720.72/325,301.92 = 133,750.48/x
  3. Step 3: Cross multiply
    235,720.72x = 325,301.92 × 133,750.48
  4. Step 4: Simplify right side
    235,720.72x = 43,509,287,944.92
  5. Step 5: Solve for x
    x = 43,509,287,944.92/235,720.72
  6. Step 6: Final answer
    x = 184,579.82

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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.