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Finding the Fourth Proportional to 351,465.86, 527,089.86 and 126,797.12

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Solution

The fourth proportional to 351,465.86, 527,089.86 and 126,797.12 is: 190,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,465.86 : 527,089.86 = 126,797.12 : x
  2. Step 2: Convert to fraction form
    351,465.86/527,089.86 = 126,797.12/x
  3. Step 3: Cross multiply
    351,465.86x = 527,089.86 × 126,797.12
  4. Step 4: Simplify right side
    351,465.86x = 66,833,476,229.20
  5. Step 5: Solve for x
    x = 66,833,476,229.20/351,465.86
  6. Step 6: Final answer
    x = 190,156.38

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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.