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Finding the Fourth Proportional to 86,605.25, 119,515.61 and 46,861.25

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Solution

The fourth proportional to 86,605.25, 119,515.61 and 46,861.25 is: 64,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,605.25 : 119,515.61 = 46,861.25 : x
  2. Step 2: Convert to fraction form
    86,605.25/119,515.61 = 46,861.25/x
  3. Step 3: Cross multiply
    86,605.25x = 119,515.61 × 46,861.25
  4. Step 4: Simplify right side
    86,605.25x = 5,600,650,644.81
  5. Step 5: Solve for x
    x = 5,600,650,644.81/86,605.25
  6. Step 6: Final answer
    x = 64,668.72

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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.