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Finding the Fourth Proportional to 119,289.92, 164,620.35 and 65,575.07

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Solution

The fourth proportional to 119,289.92, 164,620.35 and 65,575.07 is: 90,493.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,289.92 : 164,620.35 = 65,575.07 : x
  2. Step 2: Convert to fraction form
    119,289.92/164,620.35 = 65,575.07/x
  3. Step 3: Cross multiply
    119,289.92x = 164,620.35 × 65,575.07
  4. Step 4: Simplify right side
    119,289.92x = 10,794,990,768.90
  5. Step 5: Solve for x
    x = 10,794,990,768.90/119,289.92
  6. Step 6: Final answer
    x = 90,493.74

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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.