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Finding the Fourth Proportional to 79,219.60, 118,829.40 and 41,765.20

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Solution

The fourth proportional to 79,219.60, 118,829.40 and 41,765.20 is: 62,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.60 : 118,829.40 = 41,765.20 : x
  2. Step 2: Convert to fraction form
    79,219.60/118,829.40 = 41,765.20/x
  3. Step 3: Cross multiply
    79,219.60x = 118,829.40 × 41,765.20
  4. Step 4: Simplify right side
    79,219.60x = 4,962,933,656.88
  5. Step 5: Solve for x
    x = 4,962,933,656.88/79,219.60
  6. Step 6: Final answer
    x = 62,647.80

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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.