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Finding the Fourth Proportional to 177,319.80, 265,763.70 and 77,268.60

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Solution

The fourth proportional to 177,319.80, 265,763.70 and 77,268.60 is: 115,808.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,319.80 : 265,763.70 = 77,268.60 : x
  2. Step 2: Convert to fraction form
    177,319.80/265,763.70 = 77,268.60/x
  3. Step 3: Cross multiply
    177,319.80x = 265,763.70 × 77,268.60
  4. Step 4: Simplify right side
    177,319.80x = 20,535,189,029.82
  5. Step 5: Solve for x
    x = 20,535,189,029.82/177,319.80
  6. Step 6: Final answer
    x = 115,808.78

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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.