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Finding the Fourth Proportional to 127,169.08, 175,452.74 and 73,447

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Solution

The fourth proportional to 127,169.08, 175,452.74 and 73,447 is: 101,333.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,169.08 : 175,452.74 = 73,447 : x
  2. Step 2: Convert to fraction form
    127,169.08/175,452.74 = 73,447/x
  3. Step 3: Cross multiply
    127,169.08x = 175,452.74 × 73,447
  4. Step 4: Simplify right side
    127,169.08x = 12,886,477,394.78
  5. Step 5: Solve for x
    x = 12,886,477,394.78/127,169.08
  6. Step 6: Final answer
    x = 101,333.42

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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.