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Finding the Fourth Proportional to 73,016.65, 108,996.80 and 64,159.30

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Solution

The fourth proportional to 73,016.65, 108,996.80 and 64,159.30 is: 95,774.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,016.65 : 108,996.80 = 64,159.30 : x
  2. Step 2: Convert to fraction form
    73,016.65/108,996.80 = 64,159.30/x
  3. Step 3: Cross multiply
    73,016.65x = 108,996.80 × 64,159.30
  4. Step 4: Simplify right side
    73,016.65x = 6,993,158,390.24
  5. Step 5: Solve for x
    x = 6,993,158,390.24/73,016.65
  6. Step 6: Final answer
    x = 95,774.85

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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.