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Finding the Fourth Proportional to 200,518.50, 276,715.53 and 119,949.42

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Solution

The fourth proportional to 200,518.50, 276,715.53 and 119,949.42 is: 165,530.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,518.50 : 276,715.53 = 119,949.42 : x
  2. Step 2: Convert to fraction form
    200,518.50/276,715.53 = 119,949.42/x
  3. Step 3: Cross multiply
    200,518.50x = 276,715.53 × 119,949.42
  4. Step 4: Simplify right side
    200,518.50x = 33,191,867,328.49
  5. Step 5: Solve for x
    x = 33,191,867,328.49/200,518.50
  6. Step 6: Final answer
    x = 165,530.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.