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Finding the Fourth Proportional to 54,703.94, 81,946.46 and 43,478.22

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Solution

The fourth proportional to 54,703.94, 81,946.46 and 43,478.22 is: 65,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,703.94 : 81,946.46 = 43,478.22 : x
  2. Step 2: Convert to fraction form
    54,703.94/81,946.46 = 43,478.22/x
  3. Step 3: Cross multiply
    54,703.94x = 81,946.46 × 43,478.22
  4. Step 4: Simplify right side
    54,703.94x = 3,562,886,216.10
  5. Step 5: Solve for x
    x = 3,562,886,216.10/54,703.94
  6. Step 6: Final answer
    x = 65,130.34

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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.