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Finding the Fourth Proportional to 141,399.84, 212,127.84 and 52,654.08

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Solution

The fourth proportional to 141,399.84, 212,127.84 and 52,654.08 is: 78,991.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,399.84 : 212,127.84 = 52,654.08 : x
  2. Step 2: Convert to fraction form
    141,399.84/212,127.84 = 52,654.08/x
  3. Step 3: Cross multiply
    141,399.84x = 212,127.84 × 52,654.08
  4. Step 4: Simplify right side
    141,399.84x = 11,169,396,257.59
  5. Step 5: Solve for x
    x = 11,169,396,257.59/141,399.84
  6. Step 6: Final answer
    x = 78,991.58

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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.