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Finding the Fourth Proportional to 355,568.80, 533,223.60 and 118,919.20

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Solution

The fourth proportional to 355,568.80, 533,223.60 and 118,919.20 is: 178,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,568.80 : 533,223.60 = 118,919.20 : x
  2. Step 2: Convert to fraction form
    355,568.80/533,223.60 = 118,919.20/x
  3. Step 3: Cross multiply
    355,568.80x = 533,223.60 × 118,919.20
  4. Step 4: Simplify right side
    355,568.80x = 63,410,523,933.12
  5. Step 5: Solve for x
    x = 63,410,523,933.12/355,568.80
  6. Step 6: Final answer
    x = 178,335.46

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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.