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Finding the Fourth Proportional to 93,728.60, 140,588.80 and 27,167.28

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Solution

The fourth proportional to 93,728.60, 140,588.80 and 27,167.28 is: 40,749.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,728.60 : 140,588.80 = 27,167.28 : x
  2. Step 2: Convert to fraction form
    93,728.60/140,588.80 = 27,167.28/x
  3. Step 3: Cross multiply
    93,728.60x = 140,588.80 × 27,167.28
  4. Step 4: Simplify right side
    93,728.60x = 3,819,415,294.46
  5. Step 5: Solve for x
    x = 3,819,415,294.46/93,728.60
  6. Step 6: Final answer
    x = 40,749.73

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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.