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Finding the Fourth Proportional to 100,715.30, 150,890.70 and 48,008.60

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Solution

The fourth proportional to 100,715.30, 150,890.70 and 48,008.60 is: 71,926.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,715.30 : 150,890.70 = 48,008.60 : x
  2. Step 2: Convert to fraction form
    100,715.30/150,890.70 = 48,008.60/x
  3. Step 3: Cross multiply
    100,715.30x = 150,890.70 × 48,008.60
  4. Step 4: Simplify right side
    100,715.30x = 7,244,051,260.02
  5. Step 5: Solve for x
    x = 7,244,051,260.02/100,715.30
  6. Step 6: Final answer
    x = 71,926.03

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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.