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Finding the Fourth Proportional to 298,928.94, 412,509.15 and 162,959.64

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Solution

The fourth proportional to 298,928.94, 412,509.15 and 162,959.64 is: 224,877.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,928.94 : 412,509.15 = 162,959.64 : x
  2. Step 2: Convert to fraction form
    298,928.94/412,509.15 = 162,959.64/x
  3. Step 3: Cross multiply
    298,928.94x = 412,509.15 × 162,959.64
  4. Step 4: Simplify right side
    298,928.94x = 67,222,342,580.71
  5. Step 5: Solve for x
    x = 67,222,342,580.71/298,928.94
  6. Step 6: Final answer
    x = 224,877.33

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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.