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Finding the Fourth Proportional to 253,305.14, 349,503.87 and 151,310.64

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Solution

The fourth proportional to 253,305.14, 349,503.87 and 151,310.64 is: 208,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,305.14 : 349,503.87 = 151,310.64 : x
  2. Step 2: Convert to fraction form
    253,305.14/349,503.87 = 151,310.64/x
  3. Step 3: Cross multiply
    253,305.14x = 349,503.87 × 151,310.64
  4. Step 4: Simplify right side
    253,305.14x = 52,883,654,252.18
  5. Step 5: Solve for x
    x = 52,883,654,252.18/253,305.14
  6. Step 6: Final answer
    x = 208,774.51

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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.