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Finding the Fourth Proportional to 119,589,712.80, 167,538,972 and 119,589,712.80

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Solution

The fourth proportional to 119,589,712.80, 167,538,972 and 119,589,712.80 is: 167,538,972

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,589,712.80 : 167,538,972 = 119,589,712.80 : x
  2. Step 2: Convert to fraction form
    119,589,712.80/167,538,972 = 119,589,712.80/x
  3. Step 3: Cross multiply
    119,589,712.80x = 167,538,972 × 119,589,712.80
  4. Step 4: Simplify right side
    119,589,712.80x = 20,035,937,544,287,240
  5. Step 5: Solve for x
    x = 20,035,937,544,287,240/119,589,712.80
  6. Step 6: Final answer
    x = 167,538,972

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.