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Finding the Fourth Proportional to 73,015.65, 108,995.31 and 64,158.30

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Solution

The fourth proportional to 73,015.65, 108,995.31 and 64,158.30 is: 95,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,015.65 : 108,995.31 = 64,158.30 : x
  2. Step 2: Convert to fraction form
    73,015.65/108,995.31 = 64,158.30/x
  3. Step 3: Cross multiply
    73,015.65x = 108,995.31 × 64,158.30
  4. Step 4: Simplify right side
    73,015.65x = 6,992,953,797.57
  5. Step 5: Solve for x
    x = 6,992,953,797.57/73,015.65
  6. Step 6: Final answer
    x = 95,773.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.