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Finding the Fourth Proportional to 106,676.30, 147,207.21 and 63,704.30

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Solution

The fourth proportional to 106,676.30, 147,207.21 and 63,704.30 is: 87,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,676.30 : 147,207.21 = 63,704.30 : x
  2. Step 2: Convert to fraction form
    106,676.30/147,207.21 = 63,704.30/x
  3. Step 3: Cross multiply
    106,676.30x = 147,207.21 × 63,704.30
  4. Step 4: Simplify right side
    106,676.30x = 9,377,732,268.00
  5. Step 5: Solve for x
    x = 9,377,732,268.00/106,676.30
  6. Step 6: Final answer
    x = 87,908.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.