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Finding the Fourth Proportional to 316,628.64, 474,843.63 and 92,004.60

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Solution

The fourth proportional to 316,628.64, 474,843.63 and 92,004.60 is: 137,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,628.64 : 474,843.63 = 92,004.60 : x
  2. Step 2: Convert to fraction form
    316,628.64/474,843.63 = 92,004.60/x
  3. Step 3: Cross multiply
    316,628.64x = 474,843.63 × 92,004.60
  4. Step 4: Simplify right side
    316,628.64x = 43,687,800,366.38
  5. Step 5: Solve for x
    x = 43,687,800,366.38/316,628.64
  6. Step 6: Final answer
    x = 137,978.04

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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.