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Finding the Fourth Proportional to 93,874.14, 140,903.72 and 66,886.46

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Solution

The fourth proportional to 93,874.14, 140,903.72 and 66,886.46 is: 100,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,874.14 : 140,903.72 = 66,886.46 : x
  2. Step 2: Convert to fraction form
    93,874.14/140,903.72 = 66,886.46/x
  3. Step 3: Cross multiply
    93,874.14x = 140,903.72 × 66,886.46
  4. Step 4: Simplify right side
    93,874.14x = 9,424,550,344.94
  5. Step 5: Solve for x
    x = 9,424,550,344.94/93,874.14
  6. Step 6: Final answer
    x = 100,395.60

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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.