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Finding the Fourth Proportional to 119,609.99, 165,085.70 and 68,657.16

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Solution

The fourth proportional to 119,609.99, 165,085.70 and 68,657.16 is: 94,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,609.99 : 165,085.70 = 68,657.16 : x
  2. Step 2: Convert to fraction form
    119,609.99/165,085.70 = 68,657.16/x
  3. Step 3: Cross multiply
    119,609.99x = 165,085.70 × 68,657.16
  4. Step 4: Simplify right side
    119,609.99x = 11,334,315,478.32
  5. Step 5: Solve for x
    x = 11,334,315,478.32/119,609.99
  6. Step 6: Final answer
    x = 94,760.61

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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.