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Finding the Fourth Proportional to 93,630.80, 140,446.20 and 54,167.60

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Solution

The fourth proportional to 93,630.80, 140,446.20 and 54,167.60 is: 81,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,630.80 : 140,446.20 = 54,167.60 : x
  2. Step 2: Convert to fraction form
    93,630.80/140,446.20 = 54,167.60/x
  3. Step 3: Cross multiply
    93,630.80x = 140,446.20 × 54,167.60
  4. Step 4: Simplify right side
    93,630.80x = 7,607,633,583.12
  5. Step 5: Solve for x
    x = 7,607,633,583.12/93,630.80
  6. Step 6: Final answer
    x = 81,251.40

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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.