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Finding the Fourth Proportional to 115,457.95, 173,057.41 and 75,553.71

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Solution

The fourth proportional to 115,457.95, 173,057.41 and 75,553.71 is: 113,245.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,457.95 : 173,057.41 = 75,553.71 : x
  2. Step 2: Convert to fraction form
    115,457.95/173,057.41 = 75,553.71/x
  3. Step 3: Cross multiply
    115,457.95x = 173,057.41 × 75,553.71
  4. Step 4: Simplify right side
    115,457.95x = 13,075,129,368.49
  5. Step 5: Solve for x
    x = 13,075,129,368.49/115,457.95
  6. Step 6: Final answer
    x = 113,245.81

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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.