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Finding the Fourth Proportional to 86,391.96, 119,260.92 and 60,919.08

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Solution

The fourth proportional to 86,391.96, 119,260.92 and 60,919.08 is: 84,096.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,391.96 : 119,260.92 = 60,919.08 : x
  2. Step 2: Convert to fraction form
    86,391.96/119,260.92 = 60,919.08/x
  3. Step 3: Cross multiply
    86,391.96x = 119,260.92 × 60,919.08
  4. Step 4: Simplify right side
    86,391.96x = 7,265,265,526.35
  5. Step 5: Solve for x
    x = 7,265,265,526.35/86,391.96
  6. Step 6: Final answer
    x = 84,096.55

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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.