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Finding the Fourth Proportional to 101,169.42, 139,598.73 and 58,719.84

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Solution

The fourth proportional to 101,169.42, 139,598.73 and 58,719.84 is: 81,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,169.42 : 139,598.73 = 58,719.84 : x
  2. Step 2: Convert to fraction form
    101,169.42/139,598.73 = 58,719.84/x
  3. Step 3: Cross multiply
    101,169.42x = 139,598.73 × 58,719.84
  4. Step 4: Simplify right side
    101,169.42x = 8,197,215,089.80
  5. Step 5: Solve for x
    x = 8,197,215,089.80/101,169.42
  6. Step 6: Final answer
    x = 81,024.63

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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.