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Finding the Fourth Proportional to 127,872.22, 176,480.76 and 73,445.80

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Solution

The fourth proportional to 127,872.22, 176,480.76 and 73,445.80 is: 101,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872.22 : 176,480.76 = 73,445.80 : x
  2. Step 2: Convert to fraction form
    127,872.22/176,480.76 = 73,445.80/x
  3. Step 3: Cross multiply
    127,872.22x = 176,480.76 × 73,445.80
  4. Step 4: Simplify right side
    127,872.22x = 12,961,770,602.81
  5. Step 5: Solve for x
    x = 12,961,770,602.81/127,872.22
  6. Step 6: Final answer
    x = 101,365.02

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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.