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Finding the Fourth Proportional to 372,464.90, 558,697.35 and 91,982.15

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Solution

The fourth proportional to 372,464.90, 558,697.35 and 91,982.15 is: 137,973.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,464.90 : 558,697.35 = 91,982.15 : x
  2. Step 2: Convert to fraction form
    372,464.90/558,697.35 = 91,982.15/x
  3. Step 3: Cross multiply
    372,464.90x = 558,697.35 × 91,982.15
  4. Step 4: Simplify right side
    372,464.90x = 51,390,183,452.30
  5. Step 5: Solve for x
    x = 51,390,183,452.30/372,464.90
  6. Step 6: Final answer
    x = 137,973.23

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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.