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Finding the Fourth Proportional to 93,685.58, 140,530.20 and 34,490.78

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Solution

The fourth proportional to 93,685.58, 140,530.20 and 34,490.78 is: 51,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,685.58 : 140,530.20 = 34,490.78 : x
  2. Step 2: Convert to fraction form
    93,685.58/140,530.20 = 34,490.78/x
  3. Step 3: Cross multiply
    93,685.58x = 140,530.20 × 34,490.78
  4. Step 4: Simplify right side
    93,685.58x = 4,846,996,211.56
  5. Step 5: Solve for x
    x = 4,846,996,211.56/93,685.58
  6. Step 6: Final answer
    x = 51,736.84

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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.