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Finding the Fourth Proportional to 266,835.70, 400,391.52 and 117,181.18

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Solution

The fourth proportional to 266,835.70, 400,391.52 and 117,181.18 is: 175,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,835.70 : 400,391.52 = 117,181.18 : x
  2. Step 2: Convert to fraction form
    266,835.70/400,391.52 = 117,181.18/x
  3. Step 3: Cross multiply
    266,835.70x = 400,391.52 × 117,181.18
  4. Step 4: Simplify right side
    266,835.70x = 46,918,350,775.59
  5. Step 5: Solve for x
    x = 46,918,350,775.59/266,835.70
  6. Step 6: Final answer
    x = 175,832.36

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1.5x scale

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.