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Finding the Fourth Proportional to 121,148.52, 181,694.52 and 46,241.16

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Solution

The fourth proportional to 121,148.52, 181,694.52 and 46,241.16 is: 69,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.52 : 181,694.52 = 46,241.16 : x
  2. Step 2: Convert to fraction form
    121,148.52/181,694.52 = 46,241.16/x
  3. Step 3: Cross multiply
    121,148.52x = 181,694.52 × 46,241.16
  4. Step 4: Simplify right side
    121,148.52x = 8,401,765,370.44
  5. Step 5: Solve for x
    x = 8,401,765,370.44/121,148.52
  6. Step 6: Final answer
    x = 69,350.95

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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.