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Finding the Fourth Proportional to 105,779.62, 158,673.21 and 35,659.54

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Solution

The fourth proportional to 105,779.62, 158,673.21 and 35,659.54 is: 53,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,779.62 : 158,673.21 = 35,659.54 : x
  2. Step 2: Convert to fraction form
    105,779.62/158,673.21 = 35,659.54/x
  3. Step 3: Cross multiply
    105,779.62x = 158,673.21 × 35,659.54
  4. Step 4: Simplify right side
    105,779.62x = 5,658,213,678.92
  5. Step 5: Solve for x
    x = 5,658,213,678.92/105,779.62
  6. Step 6: Final answer
    x = 53,490.58

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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.