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Finding the Fourth Proportional to 366,431.82, 549,654.60 and 113,720.55

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Solution

The fourth proportional to 366,431.82, 549,654.60 and 113,720.55 is: 170,582.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,431.82 : 549,654.60 = 113,720.55 : x
  2. Step 2: Convert to fraction form
    366,431.82/549,654.60 = 113,720.55/x
  3. Step 3: Cross multiply
    366,431.82x = 549,654.60 × 113,720.55
  4. Step 4: Simplify right side
    366,431.82x = 62,507,023,422.03
  5. Step 5: Solve for x
    x = 62,507,023,422.03/366,431.82
  6. Step 6: Final answer
    x = 170,582.96

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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.