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Finding the Fourth Proportional to 58,810.71, 81,140.91 and 33,313.03

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Solution

The fourth proportional to 58,810.71, 81,140.91 and 33,313.03 is: 45,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,810.71 : 81,140.91 = 33,313.03 : x
  2. Step 2: Convert to fraction form
    58,810.71/81,140.91 = 33,313.03/x
  3. Step 3: Cross multiply
    58,810.71x = 81,140.91 × 33,313.03
  4. Step 4: Simplify right side
    58,810.71x = 2,703,049,241.28
  5. Step 5: Solve for x
    x = 2,703,049,241.28/58,810.71
  6. Step 6: Final answer
    x = 45,961.85

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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.