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Finding the Fourth Proportional to 196,356.53, 294,537.75 and 74,783.79

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Solution

The fourth proportional to 196,356.53, 294,537.75 and 74,783.79 is: 112,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,356.53 : 294,537.75 = 74,783.79 : x
  2. Step 2: Convert to fraction form
    196,356.53/294,537.75 = 74,783.79/x
  3. Step 3: Cross multiply
    196,356.53x = 294,537.75 × 74,783.79
  4. Step 4: Simplify right side
    196,356.53x = 22,026,649,243.07
  5. Step 5: Solve for x
    x = 22,026,649,243.07/196,356.53
  6. Step 6: Final answer
    x = 112,176.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.