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Finding the Fourth Proportional to 224,747.11, 310,160.44 and 129,253.88

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Solution

The fourth proportional to 224,747.11, 310,160.44 and 129,253.88 is: 178,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,747.11 : 310,160.44 = 129,253.88 : x
  2. Step 2: Convert to fraction form
    224,747.11/310,160.44 = 129,253.88/x
  3. Step 3: Cross multiply
    224,747.11x = 310,160.44 × 129,253.88
  4. Step 4: Simplify right side
    224,747.11x = 40,089,440,292.51
  5. Step 5: Solve for x
    x = 40,089,440,292.51/224,747.11
  6. Step 6: Final answer
    x = 178,375.78

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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.