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Finding the Fourth Proportional to 104,915.20, 157,372.80 and 95,729.80

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Solution

The fourth proportional to 104,915.20, 157,372.80 and 95,729.80 is: 143,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,915.20 : 157,372.80 = 95,729.80 : x
  2. Step 2: Convert to fraction form
    104,915.20/157,372.80 = 95,729.80/x
  3. Step 3: Cross multiply
    104,915.20x = 157,372.80 × 95,729.80
  4. Step 4: Simplify right side
    104,915.20x = 15,065,266,669.44
  5. Step 5: Solve for x
    x = 15,065,266,669.44/104,915.20
  6. Step 6: Final answer
    x = 143,594.70

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1.5x scale

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.