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Finding the Fourth Proportional to 213,624.67, 320,434.17 and 63,866.20

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Solution

The fourth proportional to 213,624.67, 320,434.17 and 63,866.20 is: 95,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,624.67 : 320,434.17 = 63,866.20 : x
  2. Step 2: Convert to fraction form
    213,624.67/320,434.17 = 63,866.20/x
  3. Step 3: Cross multiply
    213,624.67x = 320,434.17 × 63,866.20
  4. Step 4: Simplify right side
    213,624.67x = 20,464,912,788.05
  5. Step 5: Solve for x
    x = 20,464,912,788.05/213,624.67
  6. Step 6: Final answer
    x = 95,798.45

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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.