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Finding the Fourth Proportional to 316,198.84, 474,298.84 and 79,539.90

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Solution

The fourth proportional to 316,198.84, 474,298.84 and 79,539.90 is: 119,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,198.84 : 474,298.84 = 79,539.90 : x
  2. Step 2: Convert to fraction form
    316,198.84/474,298.84 = 79,539.90/x
  3. Step 3: Cross multiply
    316,198.84x = 474,298.84 × 79,539.90
  4. Step 4: Simplify right side
    316,198.84x = 37,725,682,303.72
  5. Step 5: Solve for x
    x = 37,725,682,303.72/316,198.84
  6. Step 6: Final answer
    x = 119,310.00

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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.