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Finding the Fourth Proportional to 224,359.66, 309,618.30 and 122,385.57

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Solution

The fourth proportional to 224,359.66, 309,618.30 and 122,385.57 is: 168,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,359.66 : 309,618.30 = 122,385.57 : x
  2. Step 2: Convert to fraction form
    224,359.66/309,618.30 = 122,385.57/x
  3. Step 3: Cross multiply
    224,359.66x = 309,618.30 × 122,385.57
  4. Step 4: Simplify right side
    224,359.66x = 37,892,810,737.39
  5. Step 5: Solve for x
    x = 37,892,810,737.39/224,359.66
  6. Step 6: Final answer
    x = 168,893.16

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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.