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Finding the Fourth Proportional to 86,994.75, 120,052.76 and 49,276.29

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Solution

The fourth proportional to 86,994.75, 120,052.76 and 49,276.29 is: 68,001.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.75 : 120,052.76 = 49,276.29 : x
  2. Step 2: Convert to fraction form
    86,994.75/120,052.76 = 49,276.29/x
  3. Step 3: Cross multiply
    86,994.75x = 120,052.76 × 49,276.29
  4. Step 4: Simplify right side
    86,994.75x = 5,915,754,370.68
  5. Step 5: Solve for x
    x = 5,915,754,370.68/86,994.75
  6. Step 6: Final answer
    x = 68,001.28

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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.