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Finding the Fourth Proportional to 176,725.50, 265,118.01 and 81,917.25

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Solution

The fourth proportional to 176,725.50, 265,118.01 and 81,917.25 is: 122,889.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,725.50 : 265,118.01 = 81,917.25 : x
  2. Step 2: Convert to fraction form
    176,725.50/265,118.01 = 81,917.25/x
  3. Step 3: Cross multiply
    176,725.50x = 265,118.01 × 81,917.25
  4. Step 4: Simplify right side
    176,725.50x = 21,717,738,304.67
  5. Step 5: Solve for x
    x = 21,717,738,304.67/176,725.50
  6. Step 6: Final answer
    x = 122,889.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.