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Finding the Fourth Proportional to 161,776,842.80, 242,665,264.20 and 161,776,842.80

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Solution

The fourth proportional to 161,776,842.80, 242,665,264.20 and 161,776,842.80 is: 242,665,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,776,842.80 : 242,665,264.20 = 161,776,842.80 : x
  2. Step 2: Convert to fraction form
    161,776,842.80/242,665,264.20 = 161,776,842.80/x
  3. Step 3: Cross multiply
    161,776,842.80x = 242,665,264.20 × 161,776,842.80
  4. Step 4: Simplify right side
    161,776,842.80x = 39,257,620,299,503,872
  5. Step 5: Solve for x
    x = 39,257,620,299,503,872/161,776,842.80
  6. Step 6: Final answer
    x = 242,665,264.20

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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.