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Finding the Fourth Proportional to 149,851.60, 224,662.20 and 84,187.60

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Solution

The fourth proportional to 149,851.60, 224,662.20 and 84,187.60 is: 126,216.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,851.60 : 224,662.20 = 84,187.60 : x
  2. Step 2: Convert to fraction form
    149,851.60/224,662.20 = 84,187.60/x
  3. Step 3: Cross multiply
    149,851.60x = 224,662.20 × 84,187.60
  4. Step 4: Simplify right side
    149,851.60x = 18,913,771,428.72
  5. Step 5: Solve for x
    x = 18,913,771,428.72/149,851.60
  6. Step 6: Final answer
    x = 126,216.68

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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.