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Finding the Fourth Proportional to 73,376.58, 109,941.86 and 43,802.88

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Solution

The fourth proportional to 73,376.58, 109,941.86 and 43,802.88 is: 65,630.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,376.58 : 109,941.86 = 43,802.88 : x
  2. Step 2: Convert to fraction form
    73,376.58/109,941.86 = 43,802.88/x
  3. Step 3: Cross multiply
    73,376.58x = 109,941.86 × 43,802.88
  4. Step 4: Simplify right side
    73,376.58x = 4,815,769,551.39
  5. Step 5: Solve for x
    x = 4,815,769,551.39/73,376.58
  6. Step 6: Final answer
    x = 65,630.88

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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.