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Finding the Fourth Proportional to 161,168.52, 241,669.35 and 72,345.54

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Solution

The fourth proportional to 161,168.52, 241,669.35 and 72,345.54 is: 108,480.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,168.52 : 241,669.35 = 72,345.54 : x
  2. Step 2: Convert to fraction form
    161,168.52/241,669.35 = 72,345.54/x
  3. Step 3: Cross multiply
    161,168.52x = 241,669.35 × 72,345.54
  4. Step 4: Simplify right side
    161,168.52x = 17,483,699,627.20
  5. Step 5: Solve for x
    x = 17,483,699,627.20/161,168.52
  6. Step 6: Final answer
    x = 108,480.86

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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.