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Finding the Fourth Proportional to 248,769.91, 343,303.49 and 141,345.84

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Solution

The fourth proportional to 248,769.91, 343,303.49 and 141,345.84 is: 195,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,769.91 : 343,303.49 = 141,345.84 : x
  2. Step 2: Convert to fraction form
    248,769.91/343,303.49 = 141,345.84/x
  3. Step 3: Cross multiply
    248,769.91x = 343,303.49 × 141,345.84
  4. Step 4: Simplify right side
    248,769.91x = 48,524,518,515.58
  5. Step 5: Solve for x
    x = 48,524,518,515.58/248,769.91
  6. Step 6: Final answer
    x = 195,057.83

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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.