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Finding the Fourth Proportional to 141,744.65, 212,611.66 and 35,128.96

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Solution

The fourth proportional to 141,744.65, 212,611.66 and 35,128.96 is: 52,692.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,744.65 : 212,611.66 = 35,128.96 : x
  2. Step 2: Convert to fraction form
    141,744.65/212,611.66 = 35,128.96/x
  3. Step 3: Cross multiply
    141,744.65x = 212,611.66 × 35,128.96
  4. Step 4: Simplify right side
    141,744.65x = 7,468,825,979.12
  5. Step 5: Solve for x
    x = 7,468,825,979.12/141,744.65
  6. Step 6: Final answer
    x = 52,692.12

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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.