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Finding the Fourth Proportional to 77,293.56, 106,666.82 and 43,304.56

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Solution

The fourth proportional to 77,293.56, 106,666.82 and 43,304.56 is: 59,761.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,293.56 : 106,666.82 = 43,304.56 : x
  2. Step 2: Convert to fraction form
    77,293.56/106,666.82 = 43,304.56/x
  3. Step 3: Cross multiply
    77,293.56x = 106,666.82 × 43,304.56
  4. Step 4: Simplify right side
    77,293.56x = 4,619,159,706.70
  5. Step 5: Solve for x
    x = 4,619,159,706.70/77,293.56
  6. Step 6: Final answer
    x = 59,761.25

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Why These Related Problems?

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