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Finding the Fourth Proportional to 93,940.71, 140,870.11 and 35,531.75

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Solution

The fourth proportional to 93,940.71, 140,870.11 and 35,531.75 is: 53,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,940.71 : 140,870.11 = 35,531.75 : x
  2. Step 2: Convert to fraction form
    93,940.71/140,870.11 = 35,531.75/x
  3. Step 3: Cross multiply
    93,940.71x = 140,870.11 × 35,531.75
  4. Step 4: Simplify right side
    93,940.71x = 5,005,361,353.33
  5. Step 5: Solve for x
    x = 5,005,361,353.33/93,940.71
  6. Step 6: Final answer
    x = 53,282.13

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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.