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Finding the Fourth Proportional to 161,196.80, 241,737.60 and 72,492.80

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Solution

The fourth proportional to 161,196.80, 241,737.60 and 72,492.80 is: 108,713.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,196.80 : 241,737.60 = 72,492.80 : x
  2. Step 2: Convert to fraction form
    161,196.80/241,737.60 = 72,492.80/x
  3. Step 3: Cross multiply
    161,196.80x = 241,737.60 × 72,492.80
  4. Step 4: Simplify right side
    161,196.80x = 17,524,235,489.28
  5. Step 5: Solve for x
    x = 17,524,235,489.28/161,196.80
  6. Step 6: Final answer
    x = 108,713.30

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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.