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Finding the Fourth Proportional to 279,047.76, 418,599 and 110,561.28

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Solution

The fourth proportional to 279,047.76, 418,599 and 110,561.28 is: 165,852.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,047.76 : 418,599 = 110,561.28 : x
  2. Step 2: Convert to fraction form
    279,047.76/418,599 = 110,561.28/x
  3. Step 3: Cross multiply
    279,047.76x = 418,599 × 110,561.28
  4. Step 4: Simplify right side
    279,047.76x = 46,280,841,246.72
  5. Step 5: Solve for x
    x = 46,280,841,246.72/279,047.76
  6. Step 6: Final answer
    x = 165,852.76

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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.