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Finding the Fourth Proportional to 161,988.97, 242,967.05 and 43,672.27

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Solution

The fourth proportional to 161,988.97, 242,967.05 and 43,672.27 is: 65,503.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,988.97 : 242,967.05 = 43,672.27 : x
  2. Step 2: Convert to fraction form
    161,988.97/242,967.05 = 43,672.27/x
  3. Step 3: Cross multiply
    161,988.97x = 242,967.05 × 43,672.27
  4. Step 4: Simplify right side
    161,988.97x = 10,610,922,390.34
  5. Step 5: Solve for x
    x = 10,610,922,390.34/161,988.97
  6. Step 6: Final answer
    x = 65,503.98

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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.