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Finding the Fourth Proportional to 98,654.92, 147,917.34 and 35,443.36

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Solution

The fourth proportional to 98,654.92, 147,917.34 and 35,443.36 is: 53,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,654.92 : 147,917.34 = 35,443.36 : x
  2. Step 2: Convert to fraction form
    98,654.92/147,917.34 = 35,443.36/x
  3. Step 3: Cross multiply
    98,654.92x = 147,917.34 × 35,443.36
  4. Step 4: Simplify right side
    98,654.92x = 5,242,687,531.86
  5. Step 5: Solve for x
    x = 5,242,687,531.86/98,654.92
  6. Step 6: Final answer
    x = 53,141.67

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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.