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Finding the Fourth Proportional to 225,804.79, 311,588.15 and 130,342.24

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Solution

The fourth proportional to 225,804.79, 311,588.15 and 130,342.24 is: 179,859.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,804.79 : 311,588.15 = 130,342.24 : x
  2. Step 2: Convert to fraction form
    225,804.79/311,588.15 = 130,342.24/x
  3. Step 3: Cross multiply
    225,804.79x = 311,588.15 × 130,342.24
  4. Step 4: Simplify right side
    225,804.79x = 40,613,097,572.94
  5. Step 5: Solve for x
    x = 40,613,097,572.94/225,804.79
  6. Step 6: Final answer
    x = 179,859.33

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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.