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Finding the Fourth Proportional to 245,753.12, 368,616.72 and 121,052

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Solution

The fourth proportional to 245,753.12, 368,616.72 and 121,052 is: 181,571.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,753.12 : 368,616.72 = 121,052 : x
  2. Step 2: Convert to fraction form
    245,753.12/368,616.72 = 121,052/x
  3. Step 3: Cross multiply
    245,753.12x = 368,616.72 × 121,052
  4. Step 4: Simplify right side
    245,753.12x = 44,621,791,189.44
  5. Step 5: Solve for x
    x = 44,621,791,189.44/245,753.12
  6. Step 6: Final answer
    x = 181,571.62

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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.