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Finding the Fourth Proportional to 101,185.74, 139,652.73 and 58,768.88

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Solution

The fourth proportional to 101,185.74, 139,652.73 and 58,768.88 is: 81,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,185.74 : 139,652.73 = 58,768.88 : x
  2. Step 2: Convert to fraction form
    101,185.74/139,652.73 = 58,768.88/x
  3. Step 3: Cross multiply
    101,185.74x = 139,652.73 × 58,768.88
  4. Step 4: Simplify right side
    101,185.74x = 8,207,233,832.78
  5. Step 5: Solve for x
    x = 8,207,233,832.78/101,185.74
  6. Step 6: Final answer
    x = 81,110.58

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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.