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Finding the Fourth Proportional to 311,786.64, 467,417.52 and 124,696.08

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Solution

The fourth proportional to 311,786.64, 467,417.52 and 124,696.08 is: 186,939.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,786.64 : 467,417.52 = 124,696.08 : x
  2. Step 2: Convert to fraction form
    311,786.64/467,417.52 = 124,696.08/x
  3. Step 3: Cross multiply
    311,786.64x = 467,417.52 × 124,696.08
  4. Step 4: Simplify right side
    311,786.64x = 58,285,132,467.32
  5. Step 5: Solve for x
    x = 58,285,132,467.32/311,786.64
  6. Step 6: Final answer
    x = 186,939.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.