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Finding the Fourth Proportional to 77,446.58, 115,982.75 and 44,065.51

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Solution

The fourth proportional to 77,446.58, 115,982.75 and 44,065.51 is: 65,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,446.58 : 115,982.75 = 44,065.51 : x
  2. Step 2: Convert to fraction form
    77,446.58/115,982.75 = 44,065.51/x
  3. Step 3: Cross multiply
    77,446.58x = 115,982.75 × 44,065.51
  4. Step 4: Simplify right side
    77,446.58x = 5,110,838,519.67
  5. Step 5: Solve for x
    x = 5,110,838,519.67/77,446.58
  6. Step 6: Final answer
    x = 65,991.80

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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.