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Finding the Fourth Proportional to 206,212.77, 309,282.08 and 93,866.85

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Solution

The fourth proportional to 206,212.77, 309,282.08 and 93,866.85 is: 140,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,212.77 : 309,282.08 = 93,866.85 : x
  2. Step 2: Convert to fraction form
    206,212.77/309,282.08 = 93,866.85/x
  3. Step 3: Cross multiply
    206,212.77x = 309,282.08 × 93,866.85
  4. Step 4: Simplify right side
    206,212.77x = 29,031,334,141.71
  5. Step 5: Solve for x
    x = 29,031,334,141.71/206,212.77
  6. Step 6: Final answer
    x = 140,783.40

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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.