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Finding the Fourth Proportional to 86,483.76, 119,347.39 and 48,757.74

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Solution

The fourth proportional to 86,483.76, 119,347.39 and 48,757.74 is: 67,285.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,483.76 : 119,347.39 = 48,757.74 : x
  2. Step 2: Convert to fraction form
    86,483.76/119,347.39 = 48,757.74/x
  3. Step 3: Cross multiply
    86,483.76x = 119,347.39 × 48,757.74
  4. Step 4: Simplify right side
    86,483.76x = 5,819,108,170.77
  5. Step 5: Solve for x
    x = 5,819,108,170.77/86,483.76
  6. Step 6: Final answer
    x = 67,285.56

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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.