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Finding the Fourth Proportional to 76,994.75, 106,253.57 and 45,164.18

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Solution

The fourth proportional to 76,994.75, 106,253.57 and 45,164.18 is: 62,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,994.75 : 106,253.57 = 45,164.18 : x
  2. Step 2: Convert to fraction form
    76,994.75/106,253.57 = 45,164.18/x
  3. Step 3: Cross multiply
    76,994.75x = 106,253.57 × 45,164.18
  4. Step 4: Simplify right side
    76,994.75x = 4,798,855,739.67
  5. Step 5: Solve for x
    x = 4,798,855,739.67/76,994.75
  6. Step 6: Final answer
    x = 62,327.05

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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.