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Finding the Fourth Proportional to 109,501.68, 151,204.41 and 73,809.84

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Solution

The fourth proportional to 109,501.68, 151,204.41 and 73,809.84 is: 101,919.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,501.68 : 151,204.41 = 73,809.84 : x
  2. Step 2: Convert to fraction form
    109,501.68/151,204.41 = 73,809.84/x
  3. Step 3: Cross multiply
    109,501.68x = 151,204.41 × 73,809.84
  4. Step 4: Simplify right side
    109,501.68x = 11,160,373,309.39
  5. Step 5: Solve for x
    x = 11,160,373,309.39/109,501.68
  6. Step 6: Final answer
    x = 101,919.65

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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.