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Finding the Fourth Proportional to 116,280.40, 174,420.60 and 82,819.30

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Solution

The fourth proportional to 116,280.40, 174,420.60 and 82,819.30 is: 124,228.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,280.40 : 174,420.60 = 82,819.30 : x
  2. Step 2: Convert to fraction form
    116,280.40/174,420.60 = 82,819.30/x
  3. Step 3: Cross multiply
    116,280.40x = 174,420.60 × 82,819.30
  4. Step 4: Simplify right side
    116,280.40x = 14,445,391,997.58
  5. Step 5: Solve for x
    x = 14,445,391,997.58/116,280.40
  6. Step 6: Final answer
    x = 124,228.95

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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.