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Finding the Fourth Proportional to 73,159.96, 109,885.76 and 69,033.64

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Solution

The fourth proportional to 73,159.96, 109,885.76 and 69,033.64 is: 103,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,159.96 : 109,885.76 = 69,033.64 : x
  2. Step 2: Convert to fraction form
    73,159.96/109,885.76 = 69,033.64/x
  3. Step 3: Cross multiply
    73,159.96x = 109,885.76 × 69,033.64
  4. Step 4: Simplify right side
    73,159.96x = 7,585,813,996.97
  5. Step 5: Solve for x
    x = 7,585,813,996.97/73,159.96
  6. Step 6: Final answer
    x = 103,688.06

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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.