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Finding the Fourth Proportional to 117,147.44, 175,552.88 and 66,586.64

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Solution

The fourth proportional to 117,147.44, 175,552.88 and 66,586.64 is: 99,784.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,147.44 : 175,552.88 = 66,586.64 : x
  2. Step 2: Convert to fraction form
    117,147.44/175,552.88 = 66,586.64/x
  3. Step 3: Cross multiply
    117,147.44x = 175,552.88 × 66,586.64
  4. Step 4: Simplify right side
    117,147.44x = 11,689,476,421.52
  5. Step 5: Solve for x
    x = 11,689,476,421.52/117,147.44
  6. Step 6: Final answer
    x = 99,784.31

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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.