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Finding the Fourth Proportional to 225,420.57, 311,076.59 and 124,816.41

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Solution

The fourth proportional to 225,420.57, 311,076.59 and 124,816.41 is: 172,244.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,420.57 : 311,076.59 = 124,816.41 : x
  2. Step 2: Convert to fraction form
    225,420.57/311,076.59 = 124,816.41/x
  3. Step 3: Cross multiply
    225,420.57x = 311,076.59 × 124,816.41
  4. Step 4: Simplify right side
    225,420.57x = 38,827,462,574.76
  5. Step 5: Solve for x
    x = 38,827,462,574.76/225,420.57
  6. Step 6: Final answer
    x = 172,244.54

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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.