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Finding the Fourth Proportional to 250,783.68, 346,081.44 and 143,356.03

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Solution

The fourth proportional to 250,783.68, 346,081.44 and 143,356.03 is: 197,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,783.68 : 346,081.44 = 143,356.03 : x
  2. Step 2: Convert to fraction form
    250,783.68/346,081.44 = 143,356.03/x
  3. Step 3: Cross multiply
    250,783.68x = 346,081.44 × 143,356.03
  4. Step 4: Simplify right side
    250,783.68x = 49,612,861,295.08
  5. Step 5: Solve for x
    x = 49,612,861,295.08/250,783.68
  6. Step 6: Final answer
    x = 197,831.30

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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.