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Finding the Fourth Proportional to 135,396,361, 186,846,978.18 and 77,449,609

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Solution

The fourth proportional to 135,396,361, 186,846,978.18 and 77,449,609 is: 106,880,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,396,361 : 186,846,978.18 = 77,449,609 : x
  2. Step 2: Convert to fraction form
    135,396,361/186,846,978.18 = 77,449,609/x
  3. Step 3: Cross multiply
    135,396,361x = 186,846,978.18 × 77,449,609
  4. Step 4: Simplify right side
    135,396,361x = 14,471,225,402,872,532
  5. Step 5: Solve for x
    x = 14,471,225,402,872,532/135,396,361
  6. Step 6: Final answer
    x = 106,880,460.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.