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Finding the Fourth Proportional to 177,196.80, 265,795.20 and 77,404.80

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Solution

The fourth proportional to 177,196.80, 265,795.20 and 77,404.80 is: 116,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,196.80 : 265,795.20 = 77,404.80 : x
  2. Step 2: Convert to fraction form
    177,196.80/265,795.20 = 77,404.80/x
  3. Step 3: Cross multiply
    177,196.80x = 265,795.20 × 77,404.80
  4. Step 4: Simplify right side
    177,196.80x = 20,573,824,296.96
  5. Step 5: Solve for x
    x = 20,573,824,296.96/177,196.80
  6. Step 6: Final answer
    x = 116,107.20

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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.