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Finding the Fourth Proportional to 134,103.90, 185,063.44 and 73,678.42

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Solution

The fourth proportional to 134,103.90, 185,063.44 and 73,678.42 is: 101,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,103.90 : 185,063.44 = 73,678.42 : x
  2. Step 2: Convert to fraction form
    134,103.90/185,063.44 = 73,678.42/x
  3. Step 3: Cross multiply
    134,103.90x = 185,063.44 × 73,678.42
  4. Step 4: Simplify right side
    134,103.90x = 13,635,181,858.96
  5. Step 5: Solve for x
    x = 13,635,181,858.96/134,103.90
  6. Step 6: Final answer
    x = 101,676.25

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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.