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Finding the Fourth Proportional to 93,810.40, 140,744.40 and 74,096.80

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Solution

The fourth proportional to 93,810.40, 140,744.40 and 74,096.80 is: 111,167.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,810.40 : 140,744.40 = 74,096.80 : x
  2. Step 2: Convert to fraction form
    93,810.40/140,744.40 = 74,096.80/x
  3. Step 3: Cross multiply
    93,810.40x = 140,744.40 × 74,096.80
  4. Step 4: Simplify right side
    93,810.40x = 10,428,709,657.92
  5. Step 5: Solve for x
    x = 10,428,709,657.92/93,810.40
  6. Step 6: Final answer
    x = 111,167.95

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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.