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Finding the Fourth Proportional to 273,209.10, 409,813.65 and 166,920.90

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Solution

The fourth proportional to 273,209.10, 409,813.65 and 166,920.90 is: 250,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,209.10 : 409,813.65 = 166,920.90 : x
  2. Step 2: Convert to fraction form
    273,209.10/409,813.65 = 166,920.90/x
  3. Step 3: Cross multiply
    273,209.10x = 409,813.65 × 166,920.90
  4. Step 4: Simplify right side
    273,209.10x = 68,406,463,290.29
  5. Step 5: Solve for x
    x = 68,406,463,290.29/273,209.10
  6. Step 6: Final answer
    x = 250,381.35

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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.