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Finding the Fourth Proportional to 93,433.20, 140,149.80 and 86,216.10

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Solution

The fourth proportional to 93,433.20, 140,149.80 and 86,216.10 is: 129,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,433.20 : 140,149.80 = 86,216.10 : x
  2. Step 2: Convert to fraction form
    93,433.20/140,149.80 = 86,216.10/x
  3. Step 3: Cross multiply
    93,433.20x = 140,149.80 × 86,216.10
  4. Step 4: Simplify right side
    93,433.20x = 12,083,169,171.78
  5. Step 5: Solve for x
    x = 12,083,169,171.78/93,433.20
  6. Step 6: Final answer
    x = 129,324.15

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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.