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Finding the Fourth Proportional to 79,200.60, 118,800.90 and 41,746.20

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Solution

The fourth proportional to 79,200.60, 118,800.90 and 41,746.20 is: 62,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.60 : 118,800.90 = 41,746.20 : x
  2. Step 2: Convert to fraction form
    79,200.60/118,800.90 = 41,746.20/x
  3. Step 3: Cross multiply
    79,200.60x = 118,800.90 × 41,746.20
  4. Step 4: Simplify right side
    79,200.60x = 4,959,486,131.58
  5. Step 5: Solve for x
    x = 4,959,486,131.58/79,200.60
  6. Step 6: Final answer
    x = 62,619.30

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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.