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Finding the Fourth Proportional to 224,285.72, 309,521.72 and 122,319.58

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Solution

The fourth proportional to 224,285.72, 309,521.72 and 122,319.58 is: 168,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,285.72 : 309,521.72 = 122,319.58 : x
  2. Step 2: Convert to fraction form
    224,285.72/309,521.72 = 122,319.58/x
  3. Step 3: Cross multiply
    224,285.72x = 309,521.72 × 122,319.58
  4. Step 4: Simplify right side
    224,285.72x = 37,860,566,791.28
  5. Step 5: Solve for x
    x = 37,860,566,791.28/224,285.72
  6. Step 6: Final answer
    x = 168,805.07

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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.