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Finding the Fourth Proportional to 177,377.89, 265,835.80 and 72,073.75

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Solution

The fourth proportional to 177,377.89, 265,835.80 and 72,073.75 is: 108,016.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,377.89 : 265,835.80 = 72,073.75 : x
  2. Step 2: Convert to fraction form
    177,377.89/265,835.80 = 72,073.75/x
  3. Step 3: Cross multiply
    177,377.89x = 265,835.80 × 72,073.75
  4. Step 4: Simplify right side
    177,377.89x = 19,159,782,990.25
  5. Step 5: Solve for x
    x = 19,159,782,990.25/177,377.89
  6. Step 6: Final answer
    x = 108,016.75

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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.