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Finding the Fourth Proportional to 141,857.88, 212,817.97 and 42,025.89

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Solution

The fourth proportional to 141,857.88, 212,817.97 and 42,025.89 is: 63,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,857.88 : 212,817.97 = 42,025.89 : x
  2. Step 2: Convert to fraction form
    141,857.88/212,817.97 = 42,025.89/x
  3. Step 3: Cross multiply
    141,857.88x = 212,817.97 × 42,025.89
  4. Step 4: Simplify right side
    141,857.88x = 8,943,864,597.24
  5. Step 5: Solve for x
    x = 8,943,864,597.24/141,857.88
  6. Step 6: Final answer
    x = 63,048.06

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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.