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Finding the Fourth Proportional to 141,605.87, 212,283.05 and 52,799.09

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Solution

The fourth proportional to 141,605.87, 212,283.05 and 52,799.09 is: 79,151.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,605.87 : 212,283.05 = 52,799.09 : x
  2. Step 2: Convert to fraction form
    141,605.87/212,283.05 = 52,799.09/x
  3. Step 3: Cross multiply
    141,605.87x = 212,283.05 × 52,799.09
  4. Step 4: Simplify right side
    141,605.87x = 11,208,350,537.01
  5. Step 5: Solve for x
    x = 11,208,350,537.01/141,605.87
  6. Step 6: Final answer
    x = 79,151.74

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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.