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Finding the Fourth Proportional to 93,266.28, 128,675.88 and 56,954.48

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Solution

The fourth proportional to 93,266.28, 128,675.88 and 56,954.48 is: 78,577.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266.28 : 128,675.88 = 56,954.48 : x
  2. Step 2: Convert to fraction form
    93,266.28/128,675.88 = 56,954.48/x
  3. Step 3: Cross multiply
    93,266.28x = 128,675.88 × 56,954.48
  4. Step 4: Simplify right side
    93,266.28x = 7,328,667,190.56
  5. Step 5: Solve for x
    x = 7,328,667,190.56/93,266.28
  6. Step 6: Final answer
    x = 78,577.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.