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Finding the Fourth Proportional to 266,064.32, 399,081.90 and 160,855.04

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Solution

The fourth proportional to 266,064.32, 399,081.90 and 160,855.04 is: 241,273.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,064.32 : 399,081.90 = 160,855.04 : x
  2. Step 2: Convert to fraction form
    266,064.32/399,081.90 = 160,855.04/x
  3. Step 3: Cross multiply
    266,064.32x = 399,081.90 × 160,855.04
  4. Step 4: Simplify right side
    266,064.32x = 64,194,334,987.78
  5. Step 5: Solve for x
    x = 64,194,334,987.78/266,064.32
  6. Step 6: Final answer
    x = 241,273.75

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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.