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Finding the Fourth Proportional to 207,087.94, 285,779.91 and 117,663.94

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Solution

The fourth proportional to 207,087.94, 285,779.91 and 117,663.94 is: 162,375.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,087.94 : 285,779.91 = 117,663.94 : x
  2. Step 2: Convert to fraction form
    207,087.94/285,779.91 = 117,663.94/x
  3. Step 3: Cross multiply
    207,087.94x = 285,779.91 × 117,663.94
  4. Step 4: Simplify right side
    207,087.94x = 33,625,990,183.45
  5. Step 5: Solve for x
    x = 33,625,990,183.45/207,087.94
  6. Step 6: Final answer
    x = 162,375.41

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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.