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Finding the Fourth Proportional to 115,887.40, 173,850.30 and 49,359.40

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Solution

The fourth proportional to 115,887.40, 173,850.30 and 49,359.40 is: 74,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,887.40 : 173,850.30 = 49,359.40 : x
  2. Step 2: Convert to fraction form
    115,887.40/173,850.30 = 49,359.40/x
  3. Step 3: Cross multiply
    115,887.40x = 173,850.30 × 49,359.40
  4. Step 4: Simplify right side
    115,887.40x = 8,581,146,497.82
  5. Step 5: Solve for x
    x = 8,581,146,497.82/115,887.40
  6. Step 6: Final answer
    x = 74,047.28

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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.