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Finding the Fourth Proportional to 303,381.37, 418,663.45 and 167,416.53

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Solution

The fourth proportional to 303,381.37, 418,663.45 and 167,416.53 is: 231,033.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,381.37 : 418,663.45 = 167,416.53 : x
  2. Step 2: Convert to fraction form
    303,381.37/418,663.45 = 167,416.53/x
  3. Step 3: Cross multiply
    303,381.37x = 418,663.45 × 167,416.53
  4. Step 4: Simplify right side
    303,381.37x = 70,091,182,036.83
  5. Step 5: Solve for x
    x = 70,091,182,036.83/303,381.37
  6. Step 6: Final answer
    x = 231,033.24

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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.