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Finding the Fourth Proportional to 127,506.96, 175,893.12 and 82,172.88

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Solution

The fourth proportional to 127,506.96, 175,893.12 and 82,172.88 is: 113,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,506.96 : 175,893.12 = 82,172.88 : x
  2. Step 2: Convert to fraction form
    127,506.96/175,893.12 = 82,172.88/x
  3. Step 3: Cross multiply
    127,506.96x = 175,893.12 × 82,172.88
  4. Step 4: Simplify right side
    127,506.96x = 14,453,644,242.59
  5. Step 5: Solve for x
    x = 14,453,644,242.59/127,506.96
  6. Step 6: Final answer
    x = 113,355.73

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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.