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Finding the Fourth Proportional to 86,291.01, 119,078.37 and 48,051.92

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Solution

The fourth proportional to 86,291.01, 119,078.37 and 48,051.92 is: 66,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,291.01 : 119,078.37 = 48,051.92 : x
  2. Step 2: Convert to fraction form
    86,291.01/119,078.37 = 48,051.92/x
  3. Step 3: Cross multiply
    86,291.01x = 119,078.37 × 48,051.92
  4. Step 4: Simplify right side
    86,291.01x = 5,721,944,606.67
  5. Step 5: Solve for x
    x = 5,721,944,606.67/86,291.01
  6. Step 6: Final answer
    x = 66,309.86

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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.