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Finding the Fourth Proportional to 266,888.56, 400,468.61 and 117,090

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Solution

The fourth proportional to 266,888.56, 400,468.61 and 117,090 is: 175,694.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,888.56 : 400,468.61 = 117,090 : x
  2. Step 2: Convert to fraction form
    266,888.56/400,468.61 = 117,090/x
  3. Step 3: Cross multiply
    266,888.56x = 400,468.61 × 117,090
  4. Step 4: Simplify right side
    266,888.56x = 46,890,869,544.90
  5. Step 5: Solve for x
    x = 46,890,869,544.90/266,888.56
  6. Step 6: Final answer
    x = 175,694.57

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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.