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Finding the Fourth Proportional to 140,809.45, 211,214.61 and 35,628.40

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Solution

The fourth proportional to 140,809.45, 211,214.61 and 35,628.40 is: 53,442.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,809.45 : 211,214.61 = 35,628.40 : x
  2. Step 2: Convert to fraction form
    140,809.45/211,214.61 = 35,628.40/x
  3. Step 3: Cross multiply
    140,809.45x = 211,214.61 × 35,628.40
  4. Step 4: Simplify right side
    140,809.45x = 7,525,238,610.92
  5. Step 5: Solve for x
    x = 7,525,238,610.92/140,809.45
  6. Step 6: Final answer
    x = 53,442.71

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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.