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Finding the Fourth Proportional to 260,301.94, 390,484.49 and 73,313.44

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Solution

The fourth proportional to 260,301.94, 390,484.49 and 73,313.44 is: 109,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,301.94 : 390,484.49 = 73,313.44 : x
  2. Step 2: Convert to fraction form
    260,301.94/390,484.49 = 73,313.44/x
  3. Step 3: Cross multiply
    260,301.94x = 390,484.49 × 73,313.44
  4. Step 4: Simplify right side
    260,301.94x = 28,627,760,435.62
  5. Step 5: Solve for x
    x = 28,627,760,435.62/260,301.94
  6. Step 6: Final answer
    x = 109,979.05

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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.