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Finding the Fourth Proportional to 177,323.80, 265,769.70 and 77,272.60

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Solution

The fourth proportional to 177,323.80, 265,769.70 and 77,272.60 is: 115,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,323.80 : 265,769.70 = 77,272.60 : x
  2. Step 2: Convert to fraction form
    177,323.80/265,769.70 = 77,272.60/x
  3. Step 3: Cross multiply
    177,323.80x = 265,769.70 × 77,272.60
  4. Step 4: Simplify right side
    177,323.80x = 20,536,715,720.22
  5. Step 5: Solve for x
    x = 20,536,715,720.22/177,323.80
  6. Step 6: Final answer
    x = 115,814.77

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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.