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Finding the Fourth Proportional to 219,674.67, 329,513.76 and 143,837.14

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Solution

The fourth proportional to 219,674.67, 329,513.76 and 143,837.14 is: 215,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,674.67 : 329,513.76 = 143,837.14 : x
  2. Step 2: Convert to fraction form
    219,674.67/329,513.76 = 143,837.14/x
  3. Step 3: Cross multiply
    219,674.67x = 329,513.76 × 143,837.14
  4. Step 4: Simplify right side
    219,674.67x = 47,396,314,462.29
  5. Step 5: Solve for x
    x = 47,396,314,462.29/219,674.67
  6. Step 6: Final answer
    x = 215,756.85

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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.