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Finding the Fourth Proportional to 303,619.76, 419,032.21 and 176,295.35

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Solution

The fourth proportional to 303,619.76, 419,032.21 and 176,295.35 is: 243,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,619.76 : 419,032.21 = 176,295.35 : x
  2. Step 2: Convert to fraction form
    303,619.76/419,032.21 = 176,295.35/x
  3. Step 3: Cross multiply
    303,619.76x = 419,032.21 × 176,295.35
  4. Step 4: Simplify right side
    303,619.76x = 73,873,431,391.17
  5. Step 5: Solve for x
    x = 73,873,431,391.17/303,619.76
  6. Step 6: Final answer
    x = 243,309.04

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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.