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Finding the Fourth Proportional to 124,043.98, 171,193.41 and 73,072.75

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Solution

The fourth proportional to 124,043.98, 171,193.41 and 73,072.75 is: 100,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,043.98 : 171,193.41 = 73,072.75 : x
  2. Step 2: Convert to fraction form
    124,043.98/171,193.41 = 73,072.75/x
  3. Step 3: Cross multiply
    124,043.98x = 171,193.41 × 73,072.75
  4. Step 4: Simplify right side
    124,043.98x = 12,509,573,250.58
  5. Step 5: Solve for x
    x = 12,509,573,250.58/124,043.98
  6. Step 6: Final answer
    x = 100,847.89

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1.5x scale

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.