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Finding the Fourth Proportional to 86,677.68, 119,606.40 and 48,944.64

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Solution

The fourth proportional to 86,677.68, 119,606.40 and 48,944.64 is: 67,538.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,677.68 : 119,606.40 = 48,944.64 : x
  2. Step 2: Convert to fraction form
    86,677.68/119,606.40 = 48,944.64/x
  3. Step 3: Cross multiply
    86,677.68x = 119,606.40 × 48,944.64
  4. Step 4: Simplify right side
    86,677.68x = 5,854,092,189.70
  5. Step 5: Solve for x
    x = 5,854,092,189.70/86,677.68
  6. Step 6: Final answer
    x = 67,538.63

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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.