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Finding the Fourth Proportional to 96,676.80, 145,339.20 and 83,846.40

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Solution

The fourth proportional to 96,676.80, 145,339.20 and 83,846.40 is: 126,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,676.80 : 145,339.20 = 83,846.40 : x
  2. Step 2: Convert to fraction form
    96,676.80/145,339.20 = 83,846.40/x
  3. Step 3: Cross multiply
    96,676.80x = 145,339.20 × 83,846.40
  4. Step 4: Simplify right side
    96,676.80x = 12,186,168,698.88
  5. Step 5: Solve for x
    x = 12,186,168,698.88/96,676.80
  6. Step 6: Final answer
    x = 126,050.60

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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.