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Finding the Fourth Proportional to 70,174.60, 105,521.10 and 58,769.80

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Solution

The fourth proportional to 70,174.60, 105,521.10 and 58,769.80 is: 88,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,174.60 : 105,521.10 = 58,769.80 : x
  2. Step 2: Convert to fraction form
    70,174.60/105,521.10 = 58,769.80/x
  3. Step 3: Cross multiply
    70,174.60x = 105,521.10 × 58,769.80
  4. Step 4: Simplify right side
    70,174.60x = 6,201,453,942.78
  5. Step 5: Solve for x
    x = 6,201,453,942.78/70,174.60
  6. Step 6: Final answer
    x = 88,371.77

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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.