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Finding the Fourth Proportional to 202,618.92, 303,656.69 and 157,694.51

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Solution

The fourth proportional to 202,618.92, 303,656.69 and 157,694.51 is: 236,330.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,618.92 : 303,656.69 = 157,694.51 : x
  2. Step 2: Convert to fraction form
    202,618.92/303,656.69 = 157,694.51/x
  3. Step 3: Cross multiply
    202,618.92x = 303,656.69 × 157,694.51
  4. Step 4: Simplify right side
    202,618.92x = 47,884,992,937.77
  5. Step 5: Solve for x
    x = 47,884,992,937.77/202,618.92
  6. Step 6: Final answer
    x = 236,330.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.