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Finding the Fourth Proportional to 203,657.93, 281,053.06 and 113,017.71

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Solution

The fourth proportional to 203,657.93, 281,053.06 and 113,017.71 is: 155,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,657.93 : 281,053.06 = 113,017.71 : x
  2. Step 2: Convert to fraction form
    203,657.93/281,053.06 = 113,017.71/x
  3. Step 3: Cross multiply
    203,657.93x = 281,053.06 × 113,017.71
  4. Step 4: Simplify right side
    203,657.93x = 31,763,972,933.82
  5. Step 5: Solve for x
    x = 31,763,972,933.82/203,657.93
  6. Step 6: Final answer
    x = 155,967.28

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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.