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Finding the Fourth Proportional to 118,403.52, 177,621.60 and 55,191.12

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Solution

The fourth proportional to 118,403.52, 177,621.60 and 55,191.12 is: 82,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,403.52 : 177,621.60 = 55,191.12 : x
  2. Step 2: Convert to fraction form
    118,403.52/177,621.60 = 55,191.12/x
  3. Step 3: Cross multiply
    118,403.52x = 177,621.60 × 55,191.12
  4. Step 4: Simplify right side
    118,403.52x = 9,803,135,040.19
  5. Step 5: Solve for x
    x = 9,803,135,040.19/118,403.52
  6. Step 6: Final answer
    x = 82,794.29

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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.