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Finding the Fourth Proportional to 129,069.40, 193,539.30 and 58,869.40

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Solution

The fourth proportional to 129,069.40, 193,539.30 and 58,869.40 is: 88,274.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,069.40 : 193,539.30 = 58,869.40 : x
  2. Step 2: Convert to fraction form
    129,069.40/193,539.30 = 58,869.40/x
  3. Step 3: Cross multiply
    129,069.40x = 193,539.30 × 58,869.40
  4. Step 4: Simplify right side
    129,069.40x = 11,393,542,467.42
  5. Step 5: Solve for x
    x = 11,393,542,467.42/129,069.40
  6. Step 6: Final answer
    x = 88,274.54

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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.