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Finding the Fourth Proportional to 98,846.88, 148,288.95 and 39,687.18

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Solution

The fourth proportional to 98,846.88, 148,288.95 and 39,687.18 is: 59,538.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,846.88 : 148,288.95 = 39,687.18 : x
  2. Step 2: Convert to fraction form
    98,846.88/148,288.95 = 39,687.18/x
  3. Step 3: Cross multiply
    98,846.88x = 148,288.95 × 39,687.18
  4. Step 4: Simplify right side
    98,846.88x = 5,885,170,250.66
  5. Step 5: Solve for x
    x = 5,885,170,250.66/98,846.88
  6. Step 6: Final answer
    x = 59,538.25

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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.