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Finding the Fourth Proportional to 93,181.81, 128,592.99 and 52,891.78

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Solution

The fourth proportional to 93,181.81, 128,592.99 and 52,891.78 is: 72,991.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,181.81 : 128,592.99 = 52,891.78 : x
  2. Step 2: Convert to fraction form
    93,181.81/128,592.99 = 52,891.78/x
  3. Step 3: Cross multiply
    93,181.81x = 128,592.99 × 52,891.78
  4. Step 4: Simplify right side
    93,181.81x = 6,801,512,136.62
  5. Step 5: Solve for x
    x = 6,801,512,136.62/93,181.81
  6. Step 6: Final answer
    x = 72,991.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.