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Finding the Fourth Proportional to 186,167.70, 279,145.77 and 127,074.90

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Solution

The fourth proportional to 186,167.70, 279,145.77 and 127,074.90 is: 190,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,167.70 : 279,145.77 = 127,074.90 : x
  2. Step 2: Convert to fraction form
    186,167.70/279,145.77 = 127,074.90/x
  3. Step 3: Cross multiply
    186,167.70x = 279,145.77 × 127,074.90
  4. Step 4: Simplify right side
    186,167.70x = 35,472,420,808.17
  5. Step 5: Solve for x
    x = 35,472,420,808.17/186,167.70
  6. Step 6: Final answer
    x = 190,540.15

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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.