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Finding the Fourth Proportional to 75,225.56, 103,858.53 and 48,414.76

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Solution

The fourth proportional to 75,225.56, 103,858.53 and 48,414.76 is: 66,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,225.56 : 103,858.53 = 48,414.76 : x
  2. Step 2: Convert to fraction form
    75,225.56/103,858.53 = 48,414.76/x
  3. Step 3: Cross multiply
    75,225.56x = 103,858.53 × 48,414.76
  4. Step 4: Simplify right side
    75,225.56x = 5,028,285,803.90
  5. Step 5: Solve for x
    x = 5,028,285,803.90/75,225.56
  6. Step 6: Final answer
    x = 66,842.78

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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.