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Finding the Fourth Proportional to 86,484.82, 119,349.21 and 48,758.98

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Solution

The fourth proportional to 86,484.82, 119,349.21 and 48,758.98 is: 67,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,484.82 : 119,349.21 = 48,758.98 : x
  2. Step 2: Convert to fraction form
    86,484.82/119,349.21 = 48,758.98/x
  3. Step 3: Cross multiply
    86,484.82x = 119,349.21 × 48,758.98
  4. Step 4: Simplify right side
    86,484.82x = 5,819,345,743.41
  5. Step 5: Solve for x
    x = 5,819,345,743.41/86,484.82
  6. Step 6: Final answer
    x = 67,287.48

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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.