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Finding the Fourth Proportional to 367,139.99, 550,742.79 and 114,422.63

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Solution

The fourth proportional to 367,139.99, 550,742.79 and 114,422.63 is: 171,644.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,139.99 : 550,742.79 = 114,422.63 : x
  2. Step 2: Convert to fraction form
    367,139.99/550,742.79 = 114,422.63/x
  3. Step 3: Cross multiply
    367,139.99x = 550,742.79 × 114,422.63
  4. Step 4: Simplify right side
    367,139.99x = 63,017,436,160.71
  5. Step 5: Solve for x
    x = 63,017,436,160.71/367,139.99
  6. Step 6: Final answer
    x = 171,644.16

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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.