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Finding the Fourth Proportional to 105,663.51, 158,495.90 and 26,777.97

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Solution

The fourth proportional to 105,663.51, 158,495.90 and 26,777.97 is: 40,167.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,663.51 : 158,495.90 = 26,777.97 : x
  2. Step 2: Convert to fraction form
    105,663.51/158,495.90 = 26,777.97/x
  3. Step 3: Cross multiply
    105,663.51x = 158,495.90 × 26,777.97
  4. Step 4: Simplify right side
    105,663.51x = 4,244,198,321.43
  5. Step 5: Solve for x
    x = 4,244,198,321.43/105,663.51
  6. Step 6: Final answer
    x = 40,167.11

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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.