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Finding the Fourth Proportional to 98,805.70, 148,236.24 and 39,682.84

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Solution

The fourth proportional to 98,805.70, 148,236.24 and 39,682.84 is: 59,535.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,805.70 : 148,236.24 = 39,682.84 : x
  2. Step 2: Convert to fraction form
    98,805.70/148,236.24 = 39,682.84/x
  3. Step 3: Cross multiply
    98,805.70x = 148,236.24 × 39,682.84
  4. Step 4: Simplify right side
    98,805.70x = 5,882,434,994.12
  5. Step 5: Solve for x
    x = 5,882,434,994.12/98,805.70
  6. Step 6: Final answer
    x = 59,535.38

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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.