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Finding the Fourth Proportional to 129,851.10, 194,813.10 and 63,293.40

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Solution

The fourth proportional to 129,851.10, 194,813.10 and 63,293.40 is: 94,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,851.10 : 194,813.10 = 63,293.40 : x
  2. Step 2: Convert to fraction form
    129,851.10/194,813.10 = 63,293.40/x
  3. Step 3: Cross multiply
    129,851.10x = 194,813.10 × 63,293.40
  4. Step 4: Simplify right side
    129,851.10x = 12,330,383,463.54
  5. Step 5: Solve for x
    x = 12,330,383,463.54/129,851.10
  6. Step 6: Final answer
    x = 94,957.87

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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.