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Finding the Fourth Proportional to 316,182.94, 474,239.48 and 79,525.71

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Solution

The fourth proportional to 316,182.94, 474,239.48 and 79,525.71 is: 119,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,182.94 : 474,239.48 = 79,525.71 : x
  2. Step 2: Convert to fraction form
    316,182.94/474,239.48 = 79,525.71/x
  3. Step 3: Cross multiply
    316,182.94x = 474,239.48 × 79,525.71
  4. Step 4: Simplify right side
    316,182.94x = 37,714,230,959.40
  5. Step 5: Solve for x
    x = 37,714,230,959.40/316,182.94
  6. Step 6: Final answer
    x = 119,279.78

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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.