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Finding the Fourth Proportional to 118,205.20, 177,307.80 and 55,997.20

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Solution

The fourth proportional to 118,205.20, 177,307.80 and 55,997.20 is: 83,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,205.20 : 177,307.80 = 55,997.20 : x
  2. Step 2: Convert to fraction form
    118,205.20/177,307.80 = 55,997.20/x
  3. Step 3: Cross multiply
    118,205.20x = 177,307.80 × 55,997.20
  4. Step 4: Simplify right side
    118,205.20x = 9,928,740,338.16
  5. Step 5: Solve for x
    x = 9,928,740,338.16/118,205.20
  6. Step 6: Final answer
    x = 83,995.80

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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.