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Finding the Fourth Proportional to 115,655.70, 173,515.95 and 56,493.30

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Solution

The fourth proportional to 115,655.70, 173,515.95 and 56,493.30 is: 84,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,655.70 : 173,515.95 = 56,493.30 : x
  2. Step 2: Convert to fraction form
    115,655.70/173,515.95 = 56,493.30/x
  3. Step 3: Cross multiply
    115,655.70x = 173,515.95 × 56,493.30
  4. Step 4: Simplify right side
    115,655.70x = 9,802,488,618.14
  5. Step 5: Solve for x
    x = 9,802,488,618.14/115,655.70
  6. Step 6: Final answer
    x = 84,755.78

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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.