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Finding the Fourth Proportional to 109,363.68, 150,921.90 and 59,062.68

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Solution

The fourth proportional to 109,363.68, 150,921.90 and 59,062.68 is: 81,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,363.68 : 150,921.90 = 59,062.68 : x
  2. Step 2: Convert to fraction form
    109,363.68/150,921.90 = 59,062.68/x
  3. Step 3: Cross multiply
    109,363.68x = 150,921.90 × 59,062.68
  4. Step 4: Simplify right side
    109,363.68x = 8,913,851,884.69
  5. Step 5: Solve for x
    x = 8,913,851,884.69/109,363.68
  6. Step 6: Final answer
    x = 81,506.51

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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.