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Finding the Fourth Proportional to 99,889.87, 149,840.58 and 37,560.91

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Solution

The fourth proportional to 99,889.87, 149,840.58 and 37,560.91 is: 56,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,889.87 : 149,840.58 = 37,560.91 : x
  2. Step 2: Convert to fraction form
    99,889.87/149,840.58 = 37,560.91/x
  3. Step 3: Cross multiply
    99,889.87x = 149,840.58 × 37,560.91
  4. Step 4: Simplify right side
    99,889.87x = 5,628,148,539.73
  5. Step 5: Solve for x
    x = 5,628,148,539.73/99,889.87
  6. Step 6: Final answer
    x = 56,343.54

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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.