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Finding the Fourth Proportional to 109,416.54, 150,994.80 and 59,115.54

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Solution

The fourth proportional to 109,416.54, 150,994.80 and 59,115.54 is: 81,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,416.54 : 150,994.80 = 59,115.54 : x
  2. Step 2: Convert to fraction form
    109,416.54/150,994.80 = 59,115.54/x
  3. Step 3: Cross multiply
    109,416.54x = 150,994.80 × 59,115.54
  4. Step 4: Simplify right side
    109,416.54x = 8,926,139,139.19
  5. Step 5: Solve for x
    x = 8,926,139,139.19/109,416.54
  6. Step 6: Final answer
    x = 81,579.43

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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.