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Finding the Fourth Proportional to 225,980.81, 311,852.66 and 124,007.97

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Solution

The fourth proportional to 225,980.81, 311,852.66 and 124,007.97 is: 171,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,980.81 : 311,852.66 = 124,007.97 : x
  2. Step 2: Convert to fraction form
    225,980.81/311,852.66 = 124,007.97/x
  3. Step 3: Cross multiply
    225,980.81x = 311,852.66 × 124,007.97
  4. Step 4: Simplify right side
    225,980.81x = 38,672,214,685.66
  5. Step 5: Solve for x
    x = 38,672,214,685.66/225,980.81
  6. Step 6: Final answer
    x = 171,130.53

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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.