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Finding the Fourth Proportional to 109,715.51, 151,406.53 and 59,414.51

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Solution

The fourth proportional to 109,715.51, 151,406.53 and 59,414.51 is: 81,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,715.51 : 151,406.53 = 59,414.51 : x
  2. Step 2: Convert to fraction form
    109,715.51/151,406.53 = 59,414.51/x
  3. Step 3: Cross multiply
    109,715.51x = 151,406.53 × 59,414.51
  4. Step 4: Simplify right side
    109,715.51x = 8,995,744,493.68
  5. Step 5: Solve for x
    x = 8,995,744,493.68/109,715.51
  6. Step 6: Final answer
    x = 81,991.55

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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.