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Finding the Fourth Proportional to 138,763.96, 208,145.92 and 33,582.92

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Solution

The fourth proportional to 138,763.96, 208,145.92 and 33,582.92 is: 50,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,763.96 : 208,145.92 = 33,582.92 : x
  2. Step 2: Convert to fraction form
    138,763.96/208,145.92 = 33,582.92/x
  3. Step 3: Cross multiply
    138,763.96x = 208,145.92 × 33,582.92
  4. Step 4: Simplify right side
    138,763.96x = 6,990,147,779.69
  5. Step 5: Solve for x
    x = 6,990,147,779.69/138,763.96
  6. Step 6: Final answer
    x = 50,374.38

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1.5x scale

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.