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Finding the Fourth Proportional to 66,092.55, 91,208.43 and 35,878.16

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Solution

The fourth proportional to 66,092.55, 91,208.43 and 35,878.16 is: 49,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,092.55 : 91,208.43 = 35,878.16 : x
  2. Step 2: Convert to fraction form
    66,092.55/91,208.43 = 35,878.16/x
  3. Step 3: Cross multiply
    66,092.55x = 91,208.43 × 35,878.16
  4. Step 4: Simplify right side
    66,092.55x = 3,272,390,188.85
  5. Step 5: Solve for x
    x = 3,272,390,188.85/66,092.55
  6. Step 6: Final answer
    x = 49,512.24

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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.