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Finding the Fourth Proportional to 225,850.92, 311,688.24 and 125,248.92

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Solution

The fourth proportional to 225,850.92, 311,688.24 and 125,248.92 is: 172,851.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,850.92 : 311,688.24 = 125,248.92 : x
  2. Step 2: Convert to fraction form
    225,850.92/311,688.24 = 125,248.92/x
  3. Step 3: Cross multiply
    225,850.92x = 311,688.24 × 125,248.92
  4. Step 4: Simplify right side
    225,850.92x = 39,038,615,436.70
  5. Step 5: Solve for x
    x = 39,038,615,436.70/225,850.92
  6. Step 6: Final answer
    x = 172,851.26

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1.5x scale

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.