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Finding the Fourth Proportional to 180,886.74, 271,243.77 and 81,047.76

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Solution

The fourth proportional to 180,886.74, 271,243.77 and 81,047.76 is: 121,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,886.74 : 271,243.77 = 81,047.76 : x
  2. Step 2: Convert to fraction form
    180,886.74/271,243.77 = 81,047.76/x
  3. Step 3: Cross multiply
    180,886.74x = 271,243.77 × 81,047.76
  4. Step 4: Simplify right side
    180,886.74x = 21,983,699,972.46
  5. Step 5: Solve for x
    x = 21,983,699,972.46/180,886.74
  6. Step 6: Final answer
    x = 121,532.95

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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.