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Finding the Fourth Proportional to 161,740,982.20, 242,611,473.30 and 161,740,982.20

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Solution

The fourth proportional to 161,740,982.20, 242,611,473.30 and 161,740,982.20 is: 242,611,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,740,982.20 : 242,611,473.30 = 161,740,982.20 : x
  2. Step 2: Convert to fraction form
    161,740,982.20/242,611,473.30 = 161,740,982.20/x
  3. Step 3: Cross multiply
    161,740,982.20x = 242,611,473.30 × 161,740,982.20
  4. Step 4: Simplify right side
    161,740,982.20x = 39,240,217,984,531,072
  5. Step 5: Solve for x
    x = 39,240,217,984,531,072/161,740,982.20
  6. Step 6: Final answer
    x = 242,611,473.30

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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.