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Finding the Fourth Proportional to 140,992.80, 211,487.76 and 47,497.92

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Solution

The fourth proportional to 140,992.80, 211,487.76 and 47,497.92 is: 71,246.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,992.80 : 211,487.76 = 47,497.92 : x
  2. Step 2: Convert to fraction form
    140,992.80/211,487.76 = 47,497.92/x
  3. Step 3: Cross multiply
    140,992.80x = 211,487.76 × 47,497.92
  4. Step 4: Simplify right side
    140,992.80x = 10,045,228,705.46
  5. Step 5: Solve for x
    x = 10,045,228,705.46/140,992.80
  6. Step 6: Final answer
    x = 71,246.39

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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.