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Finding the Fourth Proportional to 120,965,961.90, 181,197,000.45 and 120,965,961.90

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Solution

The fourth proportional to 120,965,961.90, 181,197,000.45 and 120,965,961.90 is: 181,197,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,965,961.90 : 181,197,000.45 = 120,965,961.90 : x
  2. Step 2: Convert to fraction form
    120,965,961.90/181,197,000.45 = 120,965,961.90/x
  3. Step 3: Cross multiply
    120,965,961.90x = 181,197,000.45 × 120,965,961.90
  4. Step 4: Simplify right side
    120,965,961.90x = 21,918,669,452,828,984
  5. Step 5: Solve for x
    x = 21,918,669,452,828,984/120,965,961.90
  6. Step 6: Final answer
    x = 181,197,000.45

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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.