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Finding the Fourth Proportional to 463,578.71, 695,255.67 and 126,620.93

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Solution

The fourth proportional to 463,578.71, 695,255.67 and 126,620.93 is: 189,900.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,578.71 : 695,255.67 = 126,620.93 : x
  2. Step 2: Convert to fraction form
    463,578.71/695,255.67 = 126,620.93/x
  3. Step 3: Cross multiply
    463,578.71x = 695,255.67 × 126,620.93
  4. Step 4: Simplify right side
    463,578.71x = 88,033,921,261.31
  5. Step 5: Solve for x
    x = 88,033,921,261.31/463,578.71
  6. Step 6: Final answer
    x = 189,900.70

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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.