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Finding the Fourth Proportional to 303,297, 418,549.86 and 169,161

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Solution

The fourth proportional to 303,297, 418,549.86 and 169,161 is: 233,442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,297 : 418,549.86 = 169,161 : x
  2. Step 2: Convert to fraction form
    303,297/418,549.86 = 169,161/x
  3. Step 3: Cross multiply
    303,297x = 418,549.86 × 169,161
  4. Step 4: Simplify right side
    303,297x = 70,802,312,867.46
  5. Step 5: Solve for x
    x = 70,802,312,867.46/303,297
  6. Step 6: Final answer
    x = 233,442.18

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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.