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Finding the Fourth Proportional to 141,759.01, 212,564.67 and 66,859.04

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Solution

The fourth proportional to 141,759.01, 212,564.67 and 66,859.04 is: 100,253.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,759.01 : 212,564.67 = 66,859.04 : x
  2. Step 2: Convert to fraction form
    141,759.01/212,564.67 = 66,859.04/x
  3. Step 3: Cross multiply
    141,759.01x = 212,564.67 × 66,859.04
  4. Step 4: Simplify right side
    141,759.01x = 14,211,869,235.21
  5. Step 5: Solve for x
    x = 14,211,869,235.21/141,759.01
  6. Step 6: Final answer
    x = 100,253.73

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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.