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Finding the Fourth Proportional to 316,956.37, 475,359.22 and 127,417.28

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Solution

The fourth proportional to 316,956.37, 475,359.22 and 127,417.28 is: 191,095.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,956.37 : 475,359.22 = 127,417.28 : x
  2. Step 2: Convert to fraction form
    316,956.37/475,359.22 = 127,417.28/x
  3. Step 3: Cross multiply
    316,956.37x = 475,359.22 × 127,417.28
  4. Step 4: Simplify right side
    316,956.37x = 60,568,978,835.32
  5. Step 5: Solve for x
    x = 60,568,978,835.32/316,956.37
  6. Step 6: Final answer
    x = 191,095.64

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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.