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Finding the Fourth Proportional to 83,955.72, 125,933.43 and 57,580.50

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Solution

The fourth proportional to 83,955.72, 125,933.43 and 57,580.50 is: 86,370.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,955.72 : 125,933.43 = 57,580.50 : x
  2. Step 2: Convert to fraction form
    83,955.72/125,933.43 = 57,580.50/x
  3. Step 3: Cross multiply
    83,955.72x = 125,933.43 × 57,580.50
  4. Step 4: Simplify right side
    83,955.72x = 7,251,309,866.12
  5. Step 5: Solve for x
    x = 7,251,309,866.12/83,955.72
  6. Step 6: Final answer
    x = 86,370.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.