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Finding the Fourth Proportional to 105,447.98, 157,997.00 and 74,217.62

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Solution

The fourth proportional to 105,447.98, 157,997.00 and 74,217.62 is: 111,203.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,447.98 : 157,997.00 = 74,217.62 : x
  2. Step 2: Convert to fraction form
    105,447.98/157,997.00 = 74,217.62/x
  3. Step 3: Cross multiply
    105,447.98x = 157,997.00 × 74,217.62
  4. Step 4: Simplify right side
    105,447.98x = 11,726,160,146.07
  5. Step 5: Solve for x
    x = 11,726,160,146.07/105,447.98
  6. Step 6: Final answer
    x = 111,203.27

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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.