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Finding the Fourth Proportional to 73,143.63, 109,562.36 and 46,713.87

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Solution

The fourth proportional to 73,143.63, 109,562.36 and 46,713.87 is: 69,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143.63 : 109,562.36 = 46,713.87 : x
  2. Step 2: Convert to fraction form
    73,143.63/109,562.36 = 46,713.87/x
  3. Step 3: Cross multiply
    73,143.63x = 109,562.36 × 46,713.87
  4. Step 4: Simplify right side
    73,143.63x = 5,118,081,608.36
  5. Step 5: Solve for x
    x = 5,118,081,608.36/73,143.63
  6. Step 6: Final answer
    x = 69,973.03

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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.