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Finding the Fourth Proportional to 140,809.85, 211,215.47 and 35,628.92

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Solution

The fourth proportional to 140,809.85, 211,215.47 and 35,628.92 is: 53,443.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,809.85 : 211,215.47 = 35,628.92 : x
  2. Step 2: Convert to fraction form
    140,809.85/211,215.47 = 35,628.92/x
  3. Step 3: Cross multiply
    140,809.85x = 211,215.47 × 35,628.92
  4. Step 4: Simplify right side
    140,809.85x = 7,525,379,083.39
  5. Step 5: Solve for x
    x = 7,525,379,083.39/140,809.85
  6. Step 6: Final answer
    x = 53,443.56

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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.