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Finding the Fourth Proportional to 73,322.10, 110,116.80 and 64,136.70

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Solution

The fourth proportional to 73,322.10, 110,116.80 and 64,136.70 is: 96,321.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,322.10 : 110,116.80 = 64,136.70 : x
  2. Step 2: Convert to fraction form
    73,322.10/110,116.80 = 64,136.70/x
  3. Step 3: Cross multiply
    73,322.10x = 110,116.80 × 64,136.70
  4. Step 4: Simplify right side
    73,322.10x = 7,062,528,166.56
  5. Step 5: Solve for x
    x = 7,062,528,166.56/73,322.10
  6. Step 6: Final answer
    x = 96,321.96

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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.