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Finding the Fourth Proportional to 316,253.78, 436,449.57 and 182,160.98

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Solution

The fourth proportional to 316,253.78, 436,449.57 and 182,160.98 is: 251,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,253.78 : 436,449.57 = 182,160.98 : x
  2. Step 2: Convert to fraction form
    316,253.78/436,449.57 = 182,160.98/x
  3. Step 3: Cross multiply
    316,253.78x = 436,449.57 × 182,160.98
  4. Step 4: Simplify right side
    316,253.78x = 79,504,081,391.78
  5. Step 5: Solve for x
    x = 79,504,081,391.78/316,253.78
  6. Step 6: Final answer
    x = 251,393.30

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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.