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Finding the Fourth Proportional to 276,992.19, 415,532.70 and 117,069.69

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Solution

The fourth proportional to 276,992.19, 415,532.70 and 117,069.69 is: 175,623.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,992.19 : 415,532.70 = 117,069.69 : x
  2. Step 2: Convert to fraction form
    276,992.19/415,532.70 = 117,069.69/x
  3. Step 3: Cross multiply
    276,992.19x = 415,532.70 × 117,069.69
  4. Step 4: Simplify right side
    276,992.19x = 48,646,284,373.86
  5. Step 5: Solve for x
    x = 48,646,284,373.86/276,992.19
  6. Step 6: Final answer
    x = 175,623.31

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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.