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Finding the Fourth Proportional to 86,650.56, 119,576.25 and 48,407.63

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Solution

The fourth proportional to 86,650.56, 119,576.25 and 48,407.63 is: 66,801.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,650.56 : 119,576.25 = 48,407.63 : x
  2. Step 2: Convert to fraction form
    86,650.56/119,576.25 = 48,407.63/x
  3. Step 3: Cross multiply
    86,650.56x = 119,576.25 × 48,407.63
  4. Step 4: Simplify right side
    86,650.56x = 5,788,402,268.91
  5. Step 5: Solve for x
    x = 5,788,402,268.91/86,650.56
  6. Step 6: Final answer
    x = 66,801.67

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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.