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Finding the Fourth Proportional to 250,421.42, 375,755.46 and 117,278.69

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Solution

The fourth proportional to 250,421.42, 375,755.46 and 117,278.69 is: 175,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,421.42 : 375,755.46 = 117,278.69 : x
  2. Step 2: Convert to fraction form
    250,421.42/375,755.46 = 117,278.69/x
  3. Step 3: Cross multiply
    250,421.42x = 375,755.46 × 117,278.69
  4. Step 4: Simplify right side
    250,421.42x = 44,068,105,790.58
  5. Step 5: Solve for x
    x = 44,068,105,790.58/250,421.42
  6. Step 6: Final answer
    x = 175,975.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.