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Finding the Fourth Proportional to 207,087.44, 285,779.22 and 117,663.44

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Solution

The fourth proportional to 207,087.44, 285,779.22 and 117,663.44 is: 162,374.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,087.44 : 285,779.22 = 117,663.44 : x
  2. Step 2: Convert to fraction form
    207,087.44/285,779.22 = 117,663.44/x
  3. Step 3: Cross multiply
    207,087.44x = 285,779.22 × 117,663.44
  4. Step 4: Simplify right side
    207,087.44x = 33,625,766,105.72
  5. Step 5: Solve for x
    x = 33,625,766,105.72/207,087.44
  6. Step 6: Final answer
    x = 162,374.72

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1.5x scale

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.