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Finding the Fourth Proportional to 58,170.44, 86,861.63 and 46,189.77

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Solution

The fourth proportional to 58,170.44, 86,861.63 and 46,189.77 is: 68,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,170.44 : 86,861.63 = 46,189.77 : x
  2. Step 2: Convert to fraction form
    58,170.44/86,861.63 = 46,189.77/x
  3. Step 3: Cross multiply
    58,170.44x = 86,861.63 × 46,189.77
  4. Step 4: Simplify right side
    58,170.44x = 4,012,118,480.58
  5. Step 5: Solve for x
    x = 4,012,118,480.58/58,170.44
  6. Step 6: Final answer
    x = 68,971.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.