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Finding the Fourth Proportional to 110,243.88, 165,500.28 and 72,835.92

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Solution

The fourth proportional to 110,243.88, 165,500.28 and 72,835.92 is: 109,342.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,243.88 : 165,500.28 = 72,835.92 : x
  2. Step 2: Convert to fraction form
    110,243.88/165,500.28 = 72,835.92/x
  3. Step 3: Cross multiply
    110,243.88x = 165,500.28 × 72,835.92
  4. Step 4: Simplify right side
    110,243.88x = 12,054,365,154.06
  5. Step 5: Solve for x
    x = 12,054,365,154.06/110,243.88
  6. Step 6: Final answer
    x = 109,342.72

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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.