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Finding the Fourth Proportional to 98,558.91, 147,836.27 and 31,998.94

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Solution

The fourth proportional to 98,558.91, 147,836.27 and 31,998.94 is: 47,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,558.91 : 147,836.27 = 31,998.94 : x
  2. Step 2: Convert to fraction form
    98,558.91/147,836.27 = 31,998.94/x
  3. Step 3: Cross multiply
    98,558.91x = 147,836.27 × 31,998.94
  4. Step 4: Simplify right side
    98,558.91x = 4,730,603,643.96
  5. Step 5: Solve for x
    x = 4,730,603,643.96/98,558.91
  6. Step 6: Final answer
    x = 47,997.73

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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.