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Finding the Fourth Proportional to 303,740.04, 419,159.28 and 167,782.80

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Solution

The fourth proportional to 303,740.04, 419,159.28 and 167,782.80 is: 231,539.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,740.04 : 419,159.28 = 167,782.80 : x
  2. Step 2: Convert to fraction form
    303,740.04/419,159.28 = 167,782.80/x
  3. Step 3: Cross multiply
    303,740.04x = 419,159.28 × 167,782.80
  4. Step 4: Simplify right side
    303,740.04x = 70,327,717,644.38
  5. Step 5: Solve for x
    x = 70,327,717,644.38/303,740.04
  6. Step 6: Final answer
    x = 231,539.17

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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.