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Finding the Fourth Proportional to 383,079.38, 574,703.64 and 116,860.46

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Solution

The fourth proportional to 383,079.38, 574,703.64 and 116,860.46 is: 175,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,079.38 : 574,703.64 = 116,860.46 : x
  2. Step 2: Convert to fraction form
    383,079.38/574,703.64 = 116,860.46/x
  3. Step 3: Cross multiply
    383,079.38x = 574,703.64 × 116,860.46
  4. Step 4: Simplify right side
    383,079.38x = 67,160,128,860.56
  5. Step 5: Solve for x
    x = 67,160,128,860.56/383,079.38
  6. Step 6: Final answer
    x = 175,316.48

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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.