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Finding the Fourth Proportional to 58,739.99, 81,059.01 and 31,881.92

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Solution

The fourth proportional to 58,739.99, 81,059.01 and 31,881.92 is: 43,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,739.99 : 81,059.01 = 31,881.92 : x
  2. Step 2: Convert to fraction form
    58,739.99/81,059.01 = 31,881.92/x
  3. Step 3: Cross multiply
    58,739.99x = 81,059.01 × 31,881.92
  4. Step 4: Simplify right side
    58,739.99x = 2,584,316,848.04
  5. Step 5: Solve for x
    x = 2,584,316,848.04/58,739.99
  6. Step 6: Final answer
    x = 43,995.87

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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.