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Finding the Fourth Proportional to 117,900.15, 176,739.05 and 58,679.84

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Solution

The fourth proportional to 117,900.15, 176,739.05 and 58,679.84 is: 87,964.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,900.15 : 176,739.05 = 58,679.84 : x
  2. Step 2: Convert to fraction form
    117,900.15/176,739.05 = 58,679.84/x
  3. Step 3: Cross multiply
    117,900.15x = 176,739.05 × 58,679.84
  4. Step 4: Simplify right side
    117,900.15x = 10,371,017,998.66
  5. Step 5: Solve for x
    x = 10,371,017,998.66/117,900.15
  6. Step 6: Final answer
    x = 87,964.42

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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.