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Finding the Fourth Proportional to 261,188.53, 360,511.11 and 153,793.33

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Solution

The fourth proportional to 261,188.53, 360,511.11 and 153,793.33 is: 212,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,188.53 : 360,511.11 = 153,793.33 : x
  2. Step 2: Convert to fraction form
    261,188.53/360,511.11 = 153,793.33/x
  3. Step 3: Cross multiply
    261,188.53x = 360,511.11 × 153,793.33
  4. Step 4: Simplify right side
    261,188.53x = 55,444,204,108.90
  5. Step 5: Solve for x
    x = 55,444,204,108.90/261,188.53
  6. Step 6: Final answer
    x = 212,276.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.