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Finding the Fourth Proportional to 73,807.10, 110,657.27 and 28,790.31

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Solution

The fourth proportional to 73,807.10, 110,657.27 and 28,790.31 is: 43,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,807.10 : 110,657.27 = 28,790.31 : x
  2. Step 2: Convert to fraction form
    73,807.10/110,657.27 = 28,790.31/x
  3. Step 3: Cross multiply
    73,807.10x = 110,657.27 × 28,790.31
  4. Step 4: Simplify right side
    73,807.10x = 3,185,856,963.10
  5. Step 5: Solve for x
    x = 3,185,856,963.10/73,807.10
  6. Step 6: Final answer
    x = 43,164.64

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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.