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Finding the Fourth Proportional to 103,010.63, 154,503.80 and 27,116.87

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Solution

The fourth proportional to 103,010.63, 154,503.80 and 27,116.87 is: 40,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.63 : 154,503.80 = 27,116.87 : x
  2. Step 2: Convert to fraction form
    103,010.63/154,503.80 = 27,116.87/x
  3. Step 3: Cross multiply
    103,010.63x = 154,503.80 × 27,116.87
  4. Step 4: Simplify right side
    103,010.63x = 4,189,659,323.52
  5. Step 5: Solve for x
    x = 4,189,659,323.52/103,010.63
  6. Step 6: Final answer
    x = 40,672.11

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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.