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Finding the Fourth Proportional to 220,445.50, 304,216.95 and 119,845.66

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Solution

The fourth proportional to 220,445.50, 304,216.95 and 119,845.66 is: 165,388.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,445.50 : 304,216.95 = 119,845.66 : x
  2. Step 2: Convert to fraction form
    220,445.50/304,216.95 = 119,845.66/x
  3. Step 3: Cross multiply
    220,445.50x = 304,216.95 × 119,845.66
  4. Step 4: Simplify right side
    220,445.50x = 36,459,081,155.94
  5. Step 5: Solve for x
    x = 36,459,081,155.94/220,445.50
  6. Step 6: Final answer
    x = 165,388.19

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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.