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Finding the Fourth Proportional to 213,682.34, 320,432.37 and 63,920.22

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Solution

The fourth proportional to 213,682.34, 320,432.37 and 63,920.22 is: 95,853.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,682.34 : 320,432.37 = 63,920.22 : x
  2. Step 2: Convert to fraction form
    213,682.34/320,432.37 = 63,920.22/x
  3. Step 3: Cross multiply
    213,682.34x = 320,432.37 × 63,920.22
  4. Step 4: Simplify right side
    213,682.34x = 20,482,107,585.52
  5. Step 5: Solve for x
    x = 20,482,107,585.52/213,682.34
  6. Step 6: Final answer
    x = 95,853.07

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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.