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Finding the Fourth Proportional to 180,685.89, 271,042.20 and 54,316.17

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Solution

The fourth proportional to 180,685.89, 271,042.20 and 54,316.17 is: 81,478.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,685.89 : 271,042.20 = 54,316.17 : x
  2. Step 2: Convert to fraction form
    180,685.89/271,042.20 = 54,316.17/x
  3. Step 3: Cross multiply
    180,685.89x = 271,042.20 × 54,316.17
  4. Step 4: Simplify right side
    180,685.89x = 14,721,974,212.37
  5. Step 5: Solve for x
    x = 14,721,974,212.37/180,685.89
  6. Step 6: Final answer
    x = 81,478.27

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1.5x scale

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.