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Finding the Fourth Proportional to 140,477.10, 210,910.05 and 110,928.30

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Solution

The fourth proportional to 140,477.10, 210,910.05 and 110,928.30 is: 166,545.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,477.10 : 210,910.05 = 110,928.30 : x
  2. Step 2: Convert to fraction form
    140,477.10/210,910.05 = 110,928.30/x
  3. Step 3: Cross multiply
    140,477.10x = 210,910.05 × 110,928.30
  4. Step 4: Simplify right side
    140,477.10x = 23,395,893,299.42
  5. Step 5: Solve for x
    x = 23,395,893,299.42/140,477.10
  6. Step 6: Final answer
    x = 166,545.96

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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.