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Finding the Fourth Proportional to 93,639.88, 140,459.82 and 27,975.88

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Solution

The fourth proportional to 93,639.88, 140,459.82 and 27,975.88 is: 41,963.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,639.88 : 140,459.82 = 27,975.88 : x
  2. Step 2: Convert to fraction form
    93,639.88/140,459.82 = 27,975.88/x
  3. Step 3: Cross multiply
    93,639.88x = 140,459.82 × 27,975.88
  4. Step 4: Simplify right side
    93,639.88x = 3,929,486,226.96
  5. Step 5: Solve for x
    x = 3,929,486,226.96/93,639.88
  6. Step 6: Final answer
    x = 41,963.81

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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.