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Finding the Fourth Proportional to 141,914, 212,871 and 57,719.97

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Solution

The fourth proportional to 141,914, 212,871 and 57,719.97 is: 86,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,914 : 212,871 = 57,719.97 : x
  2. Step 2: Convert to fraction form
    141,914/212,871 = 57,719.97/x
  3. Step 3: Cross multiply
    141,914x = 212,871 × 57,719.97
  4. Step 4: Simplify right side
    141,914x = 12,286,907,733.87
  5. Step 5: Solve for x
    x = 12,286,907,733.87/141,914
  6. Step 6: Final answer
    x = 86,579.96

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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.