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Finding the Fourth Proportional to 225,323.28, 310,943.46 and 123,347.52

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Solution

The fourth proportional to 225,323.28, 310,943.46 and 123,347.52 is: 170,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,323.28 : 310,943.46 = 123,347.52 : x
  2. Step 2: Convert to fraction form
    225,323.28/310,943.46 = 123,347.52/x
  3. Step 3: Cross multiply
    225,323.28x = 310,943.46 × 123,347.52
  4. Step 4: Simplify right side
    225,323.28x = 38,354,104,651.22
  5. Step 5: Solve for x
    x = 38,354,104,651.22/225,323.28
  6. Step 6: Final answer
    x = 170,218.12

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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.