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Finding the Fourth Proportional to 110,658.30, 165,789.45 and 67,302.30

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Solution

The fourth proportional to 110,658.30, 165,789.45 and 67,302.30 is: 100,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,658.30 : 165,789.45 = 67,302.30 : x
  2. Step 2: Convert to fraction form
    110,658.30/165,789.45 = 67,302.30/x
  3. Step 3: Cross multiply
    110,658.30x = 165,789.45 × 67,302.30
  4. Step 4: Simplify right side
    110,658.30x = 11,158,011,300.74
  5. Step 5: Solve for x
    x = 11,158,011,300.74/110,658.30
  6. Step 6: Final answer
    x = 100,833.03

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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.