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Finding the Fourth Proportional to 105,958.98, 146,225.97 and 58,215.42

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Solution

The fourth proportional to 105,958.98, 146,225.97 and 58,215.42 is: 80,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,958.98 : 146,225.97 = 58,215.42 : x
  2. Step 2: Convert to fraction form
    105,958.98/146,225.97 = 58,215.42/x
  3. Step 3: Cross multiply
    105,958.98x = 146,225.97 × 58,215.42
  4. Step 4: Simplify right side
    105,958.98x = 8,512,606,258.46
  5. Step 5: Solve for x
    x = 8,512,606,258.46/105,958.98
  6. Step 6: Final answer
    x = 80,338.70

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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.