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Finding the Fourth Proportional to 86,484.51, 119,348.42 and 48,758.49

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Solution

The fourth proportional to 86,484.51, 119,348.42 and 48,758.49 is: 67,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,484.51 : 119,348.42 = 48,758.49 : x
  2. Step 2: Convert to fraction form
    86,484.51/119,348.42 = 48,758.49/x
  3. Step 3: Cross multiply
    86,484.51x = 119,348.42 × 48,758.49
  4. Step 4: Simplify right side
    86,484.51x = 5,819,248,743.09
  5. Step 5: Solve for x
    x = 5,819,248,743.09/86,484.51
  6. Step 6: Final answer
    x = 67,286.60

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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.