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Finding the Fourth Proportional to 93,213.80, 139,809.90 and 26,664.20

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Solution

The fourth proportional to 93,213.80, 139,809.90 and 26,664.20 is: 39,993.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,213.80 : 139,809.90 = 26,664.20 : x
  2. Step 2: Convert to fraction form
    93,213.80/139,809.90 = 26,664.20/x
  3. Step 3: Cross multiply
    93,213.80x = 139,809.90 × 26,664.20
  4. Step 4: Simplify right side
    93,213.80x = 3,727,919,135.58
  5. Step 5: Solve for x
    x = 3,727,919,135.58/93,213.80
  6. Step 6: Final answer
    x = 39,993.21

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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.