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Finding the Fourth Proportional to 442,912.65, 664,368.98 and 123,063.90

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Solution

The fourth proportional to 442,912.65, 664,368.98 and 123,063.90 is: 184,595.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,912.65 : 664,368.98 = 123,063.90 : x
  2. Step 2: Convert to fraction form
    442,912.65/664,368.98 = 123,063.90/x
  3. Step 3: Cross multiply
    442,912.65x = 664,368.98 × 123,063.90
  4. Step 4: Simplify right side
    442,912.65x = 81,759,837,102.50
  5. Step 5: Solve for x
    x = 81,759,837,102.50/442,912.65
  6. Step 6: Final answer
    x = 184,595.85

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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.