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Finding the Fourth Proportional to 144,637.56, 199,607.34 and 80,971.56

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Solution

The fourth proportional to 144,637.56, 199,607.34 and 80,971.56 is: 111,744.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,637.56 : 199,607.34 = 80,971.56 : x
  2. Step 2: Convert to fraction form
    144,637.56/199,607.34 = 80,971.56/x
  3. Step 3: Cross multiply
    144,637.56x = 199,607.34 × 80,971.56
  4. Step 4: Simplify right side
    144,637.56x = 16,162,517,707.25
  5. Step 5: Solve for x
    x = 16,162,517,707.25/144,637.56
  6. Step 6: Final answer
    x = 111,744.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.