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Finding the Fourth Proportional to 235,305.88, 352,955.78 and 57,813.72

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Solution

The fourth proportional to 235,305.88, 352,955.78 and 57,813.72 is: 86,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,305.88 : 352,955.78 = 57,813.72 : x
  2. Step 2: Convert to fraction form
    235,305.88/352,955.78 = 57,813.72/x
  3. Step 3: Cross multiply
    235,305.88x = 352,955.78 × 57,813.72
  4. Step 4: Simplify right side
    235,305.88x = 20,405,686,637.30
  5. Step 5: Solve for x
    x = 20,405,686,637.30/235,305.88
  6. Step 6: Final answer
    x = 86,719.83

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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.