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Finding the Fourth Proportional to 96,676.80, 145,306.80 and 83,846.40

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Solution

The fourth proportional to 96,676.80, 145,306.80 and 83,846.40 is: 126,022.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,676.80 : 145,306.80 = 83,846.40 : x
  2. Step 2: Convert to fraction form
    96,676.80/145,306.80 = 83,846.40/x
  3. Step 3: Cross multiply
    96,676.80x = 145,306.80 × 83,846.40
  4. Step 4: Simplify right side
    96,676.80x = 12,183,452,075.52
  5. Step 5: Solve for x
    x = 12,183,452,075.52/96,676.80
  6. Step 6: Final answer
    x = 126,022.50

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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.