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Finding the Fourth Proportional to 225,746.64, 311,544.36 and 125,144.64

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Solution

The fourth proportional to 225,746.64, 311,544.36 and 125,144.64 is: 172,707.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,746.64 : 311,544.36 = 125,144.64 : x
  2. Step 2: Convert to fraction form
    225,746.64/311,544.36 = 125,144.64/x
  3. Step 3: Cross multiply
    225,746.64x = 311,544.36 × 125,144.64
  4. Step 4: Simplify right side
    225,746.64x = 38,988,106,776.23
  5. Step 5: Solve for x
    x = 38,988,106,776.23/225,746.64
  6. Step 6: Final answer
    x = 172,707.36

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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.