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Finding the Fourth Proportional to 93,675.80, 140,513.70 and 54,212.60

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Solution

The fourth proportional to 93,675.80, 140,513.70 and 54,212.60 is: 81,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,675.80 : 140,513.70 = 54,212.60 : x
  2. Step 2: Convert to fraction form
    93,675.80/140,513.70 = 54,212.60/x
  3. Step 3: Cross multiply
    93,675.80x = 140,513.70 × 54,212.60
  4. Step 4: Simplify right side
    93,675.80x = 7,617,613,012.62
  5. Step 5: Solve for x
    x = 7,617,613,012.62/93,675.80
  6. Step 6: Final answer
    x = 81,318.90

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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.