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Finding the Fourth Proportional to 118,122.80, 177,313.80 and 73,799.60

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Solution

The fourth proportional to 118,122.80, 177,313.80 and 73,799.60 is: 110,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,122.80 : 177,313.80 = 73,799.60 : x
  2. Step 2: Convert to fraction form
    118,122.80/177,313.80 = 73,799.60/x
  3. Step 3: Cross multiply
    118,122.80x = 177,313.80 × 73,799.60
  4. Step 4: Simplify right side
    118,122.80x = 13,085,687,514.48
  5. Step 5: Solve for x
    x = 13,085,687,514.48/118,122.80
  6. Step 6: Final answer
    x = 110,780.37

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1.5x scale

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.