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Finding the Fourth Proportional to 93,878.32, 140,604.72 and 65,923.60

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Solution

The fourth proportional to 93,878.32, 140,604.72 and 65,923.60 is: 98,735.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,878.32 : 140,604.72 = 65,923.60 : x
  2. Step 2: Convert to fraction form
    93,878.32/140,604.72 = 65,923.60/x
  3. Step 3: Cross multiply
    93,878.32x = 140,604.72 × 65,923.60
  4. Step 4: Simplify right side
    93,878.32x = 9,269,169,319.39
  5. Step 5: Solve for x
    x = 9,269,169,319.39/93,878.32
  6. Step 6: Final answer
    x = 98,735.99

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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.