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Finding the Fourth Proportional to 142,486.56, 196,485.84 and 94,747.68

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Solution

The fourth proportional to 142,486.56, 196,485.84 and 94,747.68 is: 130,654.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,486.56 : 196,485.84 = 94,747.68 : x
  2. Step 2: Convert to fraction form
    142,486.56/196,485.84 = 94,747.68/x
  3. Step 3: Cross multiply
    142,486.56x = 196,485.84 × 94,747.68
  4. Step 4: Simplify right side
    142,486.56x = 18,616,577,492.85
  5. Step 5: Solve for x
    x = 18,616,577,492.85/142,486.56
  6. Step 6: Final answer
    x = 130,654.97

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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.