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Finding the Fourth Proportional to 79,289.75, 118,905.37 and 55,585.24

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Solution

The fourth proportional to 79,289.75, 118,905.37 and 55,585.24 is: 83,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,289.75 : 118,905.37 = 55,585.24 : x
  2. Step 2: Convert to fraction form
    79,289.75/118,905.37 = 55,585.24/x
  3. Step 3: Cross multiply
    79,289.75x = 118,905.37 × 55,585.24
  4. Step 4: Simplify right side
    79,289.75x = 6,609,383,092.51
  5. Step 5: Solve for x
    x = 6,609,383,092.51/79,289.75
  6. Step 6: Final answer
    x = 83,357.34

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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.