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Finding the Fourth Proportional to 219,801.50, 303,326.25 and 119,199.50

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Solution

The fourth proportional to 219,801.50, 303,326.25 and 119,199.50 is: 164,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,801.50 : 303,326.25 = 119,199.50 : x
  2. Step 2: Convert to fraction form
    219,801.50/303,326.25 = 119,199.50/x
  3. Step 3: Cross multiply
    219,801.50x = 303,326.25 × 119,199.50
  4. Step 4: Simplify right side
    219,801.50x = 36,156,337,336.88
  5. Step 5: Solve for x
    x = 36,156,337,336.88/219,801.50
  6. Step 6: Final answer
    x = 164,495.41

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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.