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Finding the Fourth Proportional to 80,757,051.40, 121,135,577.10 and 80,757,051.40

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Solution

The fourth proportional to 80,757,051.40, 121,135,577.10 and 80,757,051.40 is: 121,135,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,757,051.40 : 121,135,577.10 = 80,757,051.40 : x
  2. Step 2: Convert to fraction form
    80,757,051.40/121,135,577.10 = 80,757,051.40/x
  3. Step 3: Cross multiply
    80,757,051.40x = 121,135,577.10 × 80,757,051.40
  4. Step 4: Simplify right side
    80,757,051.40x = 9,782,552,026,233,364
  5. Step 5: Solve for x
    x = 9,782,552,026,233,364/80,757,051.40
  6. Step 6: Final answer
    x = 121,135,577.10

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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.