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Finding the Fourth Proportional to 124,571.63, 171,918.09 and 70,873.94

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Solution

The fourth proportional to 124,571.63, 171,918.09 and 70,873.94 is: 97,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,571.63 : 171,918.09 = 70,873.94 : x
  2. Step 2: Convert to fraction form
    124,571.63/171,918.09 = 70,873.94/x
  3. Step 3: Cross multiply
    124,571.63x = 171,918.09 × 70,873.94
  4. Step 4: Simplify right side
    124,571.63x = 12,184,511,535.98
  5. Step 5: Solve for x
    x = 12,184,511,535.98/124,571.63
  6. Step 6: Final answer
    x = 97,811.29

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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.