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Finding the Fourth Proportional to 234,611.40, 351,913.80 and 57,118.80

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Solution

The fourth proportional to 234,611.40, 351,913.80 and 57,118.80 is: 85,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,611.40 : 351,913.80 = 57,118.80 : x
  2. Step 2: Convert to fraction form
    234,611.40/351,913.80 = 57,118.80/x
  3. Step 3: Cross multiply
    234,611.40x = 351,913.80 × 57,118.80
  4. Step 4: Simplify right side
    234,611.40x = 20,100,893,959.44
  5. Step 5: Solve for x
    x = 20,100,893,959.44/234,611.40
  6. Step 6: Final answer
    x = 85,677.40

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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.