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Finding the Fourth Proportional to 225,887.54, 311,762.13 and 125,317.94

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Solution

The fourth proportional to 225,887.54, 311,762.13 and 125,317.94 is: 172,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,887.54 : 311,762.13 = 125,317.94 : x
  2. Step 2: Convert to fraction form
    225,887.54/311,762.13 = 125,317.94/x
  3. Step 3: Cross multiply
    225,887.54x = 311,762.13 × 125,317.94
  4. Step 4: Simplify right side
    225,887.54x = 39,069,387,901.61
  5. Step 5: Solve for x
    x = 39,069,387,901.61/225,887.54
  6. Step 6: Final answer
    x = 172,959.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.