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Finding the Fourth Proportional to 141,672.79, 212,375.60 and 70,528.19

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Solution

The fourth proportional to 141,672.79, 212,375.60 and 70,528.19 is: 105,725.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,672.79 : 212,375.60 = 70,528.19 : x
  2. Step 2: Convert to fraction form
    141,672.79/212,375.60 = 70,528.19/x
  3. Step 3: Cross multiply
    141,672.79x = 212,375.60 × 70,528.19
  4. Step 4: Simplify right side
    141,672.79x = 14,978,466,315.52
  5. Step 5: Solve for x
    x = 14,978,466,315.52/141,672.79
  6. Step 6: Final answer
    x = 105,725.78

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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.