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Finding the Fourth Proportional to 134,339.44, 185,388.42 and 73,908.78

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Solution

The fourth proportional to 134,339.44, 185,388.42 and 73,908.78 is: 101,994.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,339.44 : 185,388.42 = 73,908.78 : x
  2. Step 2: Convert to fraction form
    134,339.44/185,388.42 = 73,908.78/x
  3. Step 3: Cross multiply
    134,339.44x = 185,388.42 × 73,908.78
  4. Step 4: Simplify right side
    134,339.44x = 13,701,831,948.33
  5. Step 5: Solve for x
    x = 13,701,831,948.33/134,339.44
  6. Step 6: Final answer
    x = 101,994.11

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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.