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Finding the Fourth Proportional to 107,858.20, 161,748.90 and 48,722.20

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Solution

The fourth proportional to 107,858.20, 161,748.90 and 48,722.20 is: 73,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,858.20 : 161,748.90 = 48,722.20 : x
  2. Step 2: Convert to fraction form
    107,858.20/161,748.90 = 48,722.20/x
  3. Step 3: Cross multiply
    107,858.20x = 161,748.90 × 48,722.20
  4. Step 4: Simplify right side
    107,858.20x = 7,880,762,255.58
  5. Step 5: Solve for x
    x = 7,880,762,255.58/107,858.20
  6. Step 6: Final answer
    x = 73,065.95

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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.