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Finding the Fourth Proportional to 109,996.15, 164,994.83 and 39,873.64

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Solution

The fourth proportional to 109,996.15, 164,994.83 and 39,873.64 is: 59,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,996.15 : 164,994.83 = 39,873.64 : x
  2. Step 2: Convert to fraction form
    109,996.15/164,994.83 = 39,873.64/x
  3. Step 3: Cross multiply
    109,996.15x = 164,994.83 × 39,873.64
  4. Step 4: Simplify right side
    109,996.15x = 6,578,944,140.48
  5. Step 5: Solve for x
    x = 6,578,944,140.48/109,996.15
  6. Step 6: Final answer
    x = 59,810.68

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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.